Gulf Cartel (English Wikipedia)

"Gulf Cartel". Insight: Organized Crime in the Americas. Archived from the original on 2 July 2012. Retrieved 19 September 2011.
Schiller, Dane (16 January 1996). "Legendary Juan Garcia Abrego in U.S. custody". The Brownsville Herald. Archived from the original on 15 July 2012. Retrieved 27 January 2012.
Schiller, Dane (19 January 1996). "Expulsion may have broken the law". The Brownsville Herald. Archived from the original on 15 July 2012. Retrieved 27 January 2012.
Langford, Terri (1 February 1997). "Life in jail for drug lord". The Brownsville Herald. Archived from the original on 29 July 2012. Retrieved 27 January 2012.
Robbins, Maro (27 August 1995). "Garcia Abrego was allowed to go free". The Brownsville Herald. Archived from the original on 11 July 2012. Retrieved 27 January 2012.
Schiller, Dane (30 November 1995). "Peña: Garcia Abrego hurt by huge bust Agents seize $22 million load of coke". The Brownsville Herald. Archived from the original on 14 July 2012. Retrieved 27 January 2012.
Vindell, Tony (24 January 1996). "El Profe welcomes Garcia Abrego's downfall". The Brownsville Herald. Archived from the original on 20 July 2012. Retrieved 27 January 2012.
"Indagan a familiar de El Señor de los Tráileres". Milenio Noticias. 18 November 2008. Archived from the original on 16 July 2012.
"DEA: acuerdan 3 cárteles alianza contra Los Zetas". Milenio. Archived from the original on 29 June 2012. Retrieved 1 December 2011.
Sherman, Chris (25 January 2012). "Texas jury convicts alleged Mexican cartel hit man". The Monitor. Archived from the original on 12 September 2012. Retrieved 26 January 2012.
"Grayson: Zapata slaying will have repercussions". The Brownsville Herald. 17 February 2011. Archived from the original on 21 April 2020.
Perez, Emma (23 September 2008). "Cardenas Guillen awaits trial". The Brownsville Herald. Archived from the original on 29 July 2012. Retrieved 28 January 2012.
"Authorities: Gulf Cartel, Zetas gang up on each other as arrangement dies". The Monitor. 10 March 2010. Archived from the original on 12 September 2012.
Mosso, Ruben (7 November 2010). "Operativo de seis meses llevó a abatimiento de Tony Tormenta: Secretaría de Marina". Milenio Noticias. Archived from the original on 8 September 2012. Retrieved 27 December 2011.
"Reputed Gulf cartel leader killed in Mexico shootout". El Paso Times. Archived from the original on 29 July 2012. Retrieved 29 November 2011.
"Tony Tormenta escapó en 2 ocasiones: Marina". Milenio. 8 November 2010. Archived from the original on 14 July 2012. Retrieved 2 January 2012.
"Major Arrests Expected to Shake Up Gulf Cartel". KRGV-TV. 13 December 2011. Archived from the original on 27 January 2013. Retrieved 10 August 2012.
Pachico, Elyssa (11 October 2011). "Death of Gulf Cartel 'Finance Chief' Sign of Internal Strife?". InSight Crime. Archived from the original on 9 August 2012. Retrieved 9 August 2012.
"Mexico: Gulf Cartel lieutenant, his right-hand man captured". The Monitor. 30 August 2011. Archived from the original on 9 August 2012. Retrieved 9 August 2012.
"Sicarios de los Beltrán Leyva y Zetas atacan a gente del Chapo en Sonora". Milenio. 2 July 2010. Archived from the original on 5 September 2012. Retrieved 28 January 2012.
Salas, Alejandro (February 2010). "Blindaje contra narcopolíticos en Tamaulipas". Milenio. Archived from the original on 16 July 2012. Retrieved 22 January 2012.
"Arrestan nuevamente a Óscar Pérez Inguanzo, ex alcalde de Tampico". Milenio. 12 November 2011. Archived from the original on 28 January 2013. Retrieved 2 January 2012.
"Opinión sobre posible corrupción en Matamoros". Terra (in Spanish). 5 May 2011. Archived from the original on 12 September 2012. Retrieved 2 January 2012.
"DATOS – Principales capos de la droga en México". International Business Times (in Spanish). Archived from the original on 15 July 2012. Retrieved 6 November 2010.
Del Valle, Fernando (13 December 2010). "Cartel bribery spreads to Valley". The Brownsville Herald. Archived from the original on 20 July 2012. Retrieved 22 January 2012.
"Ringleader behind Gulf Cartel gun, drug trafficking ring in McAllen pleads guilty". The Monitor. 6 September 2011. Archived from the original on 14 September 2012. Retrieved 22 January 2012.
"La piratería asuela a la industria legal". CNN Expansion. 15 July 2010. Archived from the original on 28 July 2012. Retrieved 22 January 2012.

balkaninsight.com

"Cocaine Comrades: The Balkan Ties of a Fallen Colombian Drug [Trafficker". 6 December 2021. Archived from the original on 1 May 2022. Retrieved 22 April 2022.

bbc.co.uk

"Mexico Gulf Cartel leader Mario Ramirez Trevino captured". BBC News. 18 August 2013. Archived from the original on 18 August 2013. Retrieved 20 June 2018.
Nájar, Alberto (13 April 2011). "Tamaulipas, ¿en camino de convertirse en un estado fallido?". BBC Mundo. Archived from the original on 16 April 2011. Retrieved 28 December 2011.
Miglierini, Julian (13 April 2011). "Tamaulipas: 'Failed state' in Mexico's war on drugs". BBC News, Mexico City. Archived from the original on 1 January 2012. Retrieved 28 December 2011.
"Mexico's drugs war: Lessons and challenges". BBC News. 31 December 2011. Retrieved 21 January 2012.

news.bbc.co.uk

"'Drug boss' captured in Mexico". BBC News. 15 March 2003. Archived from the original on 11 June 2011. Retrieved 25 February 2010.

bbc.com

Will Grant (8 March 2023). "Mexico kidnapping: A twisted moral code explains cartel's apology". BBC News.

blogdelnarco.info

"Desde las entrañas del Ejército, Los Zetas". Blog del Narco. 23 May 2010. Archived from the original on 25 December 2010.
"¿Quienes son los Zetas?". Blog del Narco. 7 March 2010. Archived from the original on 29 July 2011.
"Heriberto Lazcano Lazcano "El Verdugo"". Blog del Narco. 3 March 2010. Archived from the original on 6 August 2011.

books.google.com

Campbell, Howard (2009). Drug war zone: frontline dispatches from the streets of El Paso and Juárez. University of Texas Press. p. 310. ISBN 978-0-292-72179-1.
Warner, Judith (2010). U.S. Border Security: A Reference Handbook. ABC-CLIO. p. 381. ISBN 978-1-59884-407-8.
Grillo, Ioan (2011). El Narco: Inside Mexico's Criminal Insurgency. Bloomsbury Publishing. p. 256. ISBN 978-1-60819-504-6.
Correa-Cabrera 2017, p. 267. Correa-Cabrera, Guadalupe (2017). Los Zetas Inc.: Criminal Corporations, Energy, and Civil War in Mexico. University of Texas Press. ISBN 978-1477312773.
Smith, Peter H. (1997). "Drug Trafficking in Mexico". Coming together?: Mexico-United States relations. Brookings Institution Press. p. 132. ISBN 978-0-8157-1027-1.
Grayson, George W. (2010). Mexico: narco-violence and a failed state?. Transaction Publishers. p. 339. ISBN 978-1-4128-1151-4.
Adler, Patricia A. (2012). Drugs and the American Dream: An Anthology. Wiley-Blackwell. p. 456. ISBN 978-0-470-67027-9.
Ortiz, Carlos (2010). Private armed forces and global security: a guide to the issues. ABC-CLIO. p. 250. ISBN 978-0-313-35592-9.
Payan, Tony (2006). Three United States-Mexico border wars. Greenwood Publishing Group. p. 164. ISBN 978-0-275-98818-0.
Bryden, Alan (2006). Private actors and security governance. LIT Verlag Münster. p. 314. ISBN 978-3-8258-9840-3.
Payan, Tony (2009). Human rights along the U.S.-Mexico border: gendered violence and insecurity. University of Arizona Press. p. 230. ISBN 978-0-8165-2872-1.
Sutton, Barbara (2008). Security disarmed: critical perspectives on gender, race, and militarization. Rutgers University Press. p. 308. ISBN 978-0-8135-4360-4.
Richards, James R. (1999). Transnational criminal organizations, cybercrime, and money laundering. CRC Press. p. 318. ISBN 978-0-8493-2806-0.

borderlandbeat.com

"Monte Escobedo, Zacatecas: Cartel del Golfo Burns Captured Combatants". Borderland Beat. 21 June 2021. Archived from the original on 15 August 2021. Retrieved 15 August 2021.
"Los Zetas and Mexico's Transnational Drug War". Borderland Beat. Archived from the original on 10 February 2020. Retrieved 9 December 2011.
"Cartel boss: Everyone from cops to strippers worked for me". Archived from the original on 25 September 2012. Retrieved 25 September 2012.
"Gulf Cartel split with Zetas made public". Borderland Beat. 10 March 2010. Archived from the original on 11 September 2019. Retrieved 9 October 2011.
"Another Cardenas-Guillen inherits the organization". Borderland Beat. Archived from the original on 13 November 2011. Retrieved 6 December 2011.
"Dozens killed in Matamoros; Tony Tormenta dead". Borderland Beat. 5 November 2010. Archived from the original on 19 July 2011. Retrieved 1 August 2011.
"Gulf Cartel vs. Los Zetas... One year later". Borderland Beat. 26 February 2011. Archived from the original on 28 January 2012. Retrieved 28 January 2012.
"Two Zetas executed in Brownsville, Texas". Borderland Beat. 25 October 2010. Archived from the original on 11 February 2012. Retrieved 28 January 2012.
"The Missing in Tamaulipas". Borderland Beat. 26 April 2010. Archived from the original on 28 January 2012. Retrieved 28 January 2012.
"All Tamaulipas, a War Zone". Borderland Beat. 22 April 2010. Archived from the original on 28 January 2012. Retrieved 28 January 2012.
"Mexican soccer star arrested for working in kidnapping ring that took pop singer's husband". Borderland Beat. 8 January 2012. Archived from the original on 19 January 2012. Retrieved 21 January 2012.
"Gulf Cartel kidnapping of U.S. citizens". Borderland Beat. 27 January 2010. Retrieved 21 January 2012.
"El Mamito: ""All the weapons are bought in the United States"". Borderland Beat. 6 July 2011. Retrieved 22 January 2012.
"CDG's 'El Yankee' Sentenced in D.C. to 35 Years". Borderland Beat (Press release). DEA-DOJ.

brown.edu

Andreas, Peter (April 1998). The Political Economy of Narco-Corruption in Mexico (PDF). Brown University. Archived (PDF) from the original on 19 January 2012. Retrieved 28 December 2011.

brownsvilleherald.com

Vindell, Tony (15 October 1994). "Reputed drug lord's brother under arrest". The Brownsville Herald. Archived from the original on 23 March 2012. Retrieved 31 July 2011.
Langford, Terri (1 February 1997). "Life in jail for drug lord". The Brownsville Herald. Archived from the original on 29 July 2012. Retrieved 27 January 2012.
Schiller, Dane (17 January 1996). "Juan Garcia Abrego arraigned in U.S. FBI fugitive could spend life in prison". The Brownsville Herald. Retrieved 27 January 2012.^{[permanent dead link]}
Taylor, Marisa (17 October 1996). "Jury: Abrego guilty". The Brownsville Herald. Retrieved 27 January 2012.^{[permanent dead link]}
Vindell, Tony (24 January 1996). "El Profe welcomes Garcia Abrego's downfall". The Brownsville Herald. Archived from the original on 20 July 2012. Retrieved 27 January 2012.
"Grayson: Zapata slaying will have repercussions". The Brownsville Herald. 17 February 2011. Archived from the original on 21 April 2020.
"DEA agent talks of 1999 Matamoros standoff with Osiel Cardenas-Guillen". The Brownsville Herald. 15 March 2010. Archived from the original on 23 March 2012. Retrieved 28 January 2012.
"Extradition: Past cases highlight limits". The Brownsville Herald. 5 March 2011. Archived from the original on 31 March 2019. Retrieved 28 January 2012.
Perez, Emma (23 September 2008). "Cardenas Guillen awaits trial". The Brownsville Herald. Archived from the original on 29 July 2012. Retrieved 28 January 2012.
"In the aftermath, UTB-TSC works to protect students". The Brownsville Herald. Archived from the original on 5 April 2012. Retrieved 29 November 2011.
"Head of Gulf Cartel killed". The Brownsville Herald. 5 November 2010. Archived from the original on 9 November 2010. Retrieved 6 December 2011.
"Dozens killed in Matamoros; bridges closed". The Brownsville Herald. Archived from the original on 7 November 2010. Retrieved 6 December 2011.
"Gulf Cartel lieutenant linked to various incidents in the U.S side". The Brownsville Herald. 2 January 2012. Archived from the original on 13 January 2012. Retrieved 21 January 2012.
Del Valle, Fernando (13 December 2010). "Cartel bribery spreads to Valley". The Brownsville Herald. Archived from the original on 20 July 2012. Retrieved 22 January 2012.

old.brownsvilleherald.com

Schiller, Dane (16 January 1996). "Legendary Juan Garcia Abrego in U.S. custody". The Brownsville Herald. Archived from the original on 15 July 2012. Retrieved 27 January 2012.
Schiller, Dane (19 January 1996). "Expulsion may have broken the law". The Brownsville Herald. Archived from the original on 15 July 2012. Retrieved 27 January 2012.
Robbins, Maro (27 August 1995). "Garcia Abrego was allowed to go free". The Brownsville Herald. Archived from the original on 11 July 2012. Retrieved 27 January 2012.
Schiller, Dane (30 November 1995). "Peña: Garcia Abrego hurt by huge bust Agents seize $22 million load of coke". The Brownsville Herald. Archived from the original on 14 July 2012. Retrieved 27 January 2012.

cato.org

Carpenter, Ted Galen (15 November 2011). "Undermining Mexico's Dangerous Drug Cartels" (PDF). Policy Analysis. Archived (PDF) from the original on 15 December 2011. Retrieved 3 January 2012.

cdfai.org

Klepak, Hal (August 2010). "Mexico: Current and Future Political, Economic and Security Trends" (PDF). Canadian Defence & Foreign Affairs Institute. Archived from the original (PDF) on 26 April 2012.

chron.com

Tedford, Deborah (2 July 1996). "Garcia Abrego is U.S. citizen, officials insist". The Houston Chronicle. Archived from the original on 1 November 2013. Retrieved 27 January 2012.
Schiller, Dane. "Narco gangster reveals the underworld". Houston Chronicle. Archived from the original on 16 August 2011. Retrieved 17 April 2020.
Schiller, Dane (15 March 2010). "DEA agent breaks silence on standoff with cartel". The Houston Chronicle. Archived from the original on 27 November 2018.
Langford, Terri (9 November 2011). "New U.S. attorney no stranger to Houston". The Houston Chronicle. Archived from the original on 4 February 2015. Retrieved 28 January 2012.
Schiller, Dane (30 September 2011). "Mexican drug lords decry U.S. prison conditions". The Houston Chronicle. Archived from the original on 31 January 2012. Retrieved 28 January 2012.
"Assets from drug boss go to Texas law enforcement". The Houston Chronicle. 17 January 2012. Archived from the original on 5 March 2012. Retrieved 28 January 2012.
Schiller, Dane (4 August 2011). "Trafficking defendant: I was a DEA informer". The Houston Chronicle. Archived from the original on 16 February 2012. Retrieved 28 January 2012.
Buch, Jason (1 January 2012). "Cartels cooperate with prison gangs". The Houston Chronicle. Archived from the original on 8 January 2012. Retrieved 3 January 2012.

cnn.com

mexico.cnn.com

Fantz, Ashley (22 January 2012). "Saldo por el combate al narcotráfico: muerte por un negocio millonario". CNN Mexico. Archived from the original on 23 January 2012. Retrieved 24 January 2012.
"El origen de 'Los Zetas': brazo armado del cártel del Golfo". CNN México. 5 July 2011. Archived from the original on 28 January 2013.
"Sentencian a Osiel Cárdenas Guillén a 25 años de prisión en Texas". CNN México. 24 February 2010. Archived from the original on 4 September 2011.
"Los 'grandes capos' detenidos en la guerra contra el narcotráfico de Calderón". CNN Mexico. 6 November 2010. Archived from the original on 3 April 2013. Retrieved 1 December 2011.
"Secretaría de Marina, detenciones en tierra". CNN Mexico. 23 November 2010. Archived from the original on 30 November 2011. Retrieved 29 November 2011.
"600 militares llegan a Mier, una ciudad abandonada por sus habitantes". CNN Mexico. 9 December 2011. Archived from the original on 5 September 2012. Retrieved 11 December 2011.
"Barack Obama expresa su apoyo a Calderón por la muerte de 'Tony Tormenta'". CNN Mexico. 6 November 2010. Archived from the original on 6 September 2012. Retrieved 29 November 2011.
"Tony Tormenta, el capo que 'cuidaba' las fronteras de Tamaulipas". CNN Mexico. 5 November 2010. Archived from the original on 3 March 2013. Retrieved 29 November 2011.
Penhaul, Kent (21 June 2010). "La ley del silencio en Reynosa sólo la rompe... Twitter". CNN Mexico. Archived from the original on 29 January 2012. Retrieved 28 January 2012.
"40 reos se fugan de penal de Matamoros". CNN Mexico. 25 March 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"85 reos escaparon del penal de Reynosa, precisa el gobierno". CNN México. 10 September 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Al menos 71 reos se fugan de un penal de Reynosa, en Tamaulipas". CNN México. 10 September 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Un comando libera a trece prisioneros de un penal de Reynosa". CNN Mexico. 5 April 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Al menos 148 presos se escapan de una cárcel de Tamaulipas". CNNMéxico. 17 December 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Tamaulipas cesa a directivos de penal por la fuga de los 141 reos". CNN México. 17 December 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Al menos siete muertos y 59 reos fugados en una cárcel de Nuevo Laredo". CNN México. 15 July 2011. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Tras las fugas de reos en Tamaulipas, el gobierno federal se defiende". CNN Mexico. 7 April 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Más de 400 reos se fugaron de cárceles de Tamaulipas en 14 meses". CNN México (in Spanish). 15 July 2011. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"El gobierno de México desplegará 2,790 militares en Tamaulipas". CNN Mexico (in Spanish). 24 June 2011. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"México enviará más Fuerzas Armadas a Nuevo León y Tamaulipas". CNN Mexico (in Spanish). 24 November 2011. Archived from the original on 2 January 2012. Retrieved 2 January 2012.
Castillo, Mariano (26 June 2011). "Tropas mexicanas reemplazan a los policías en la mitad de Tamaulipas". CNN Mexico (in Spanish). Archived from the original on 22 February 2012. Retrieved 2 January 2012.
"El dinero del narco, principal reto para el sistema financiero de EU". CNN Mexico (in Spanish). 13 October 2011. Retrieved 21 January 2012.
"Armamento de 'Los Zetas' se compra en EU, dice fundador del grupo criminal". CNN Mexico. 5 July 2011. Archived from the original on 28 September 2012. Retrieved 22 January 2012.

articles.cnn.com

Ware, Michael (6 August 2009). "Los Zetas called Mexico's most dangerous drug cartel". CNN World. Archived from the original on 15 October 2011.
"Weekend shootouts in northeastern Mexico kill at least 9". CNN News. 17 June 2011. Archived from the original on 15 March 2012. Retrieved 9 December 2011.
Brice, Arthur (21 September 2009). "Latin American drug cartels find home in West Africa". CNN. Archived from the original on 11 August 2011. Retrieved 3 January 2012.

cnn.mx

"Los 'grandes capos' detenidos en la guerra contra el narcotráfico de Calderón". CNN México. 6 November 2010. Archived from the original on 13 March 2012.

countymonitor.com

montgomerytx.countymonitor.com

"Texas Gang Threat Assessment 2010" (PDF). Texas Department of Public Safety. Archived from the original (PDF) on 26 April 2012. Retrieved 8 December 2011.

cronica.com.mx

"Desarticula PGR red de lavado de dinero del Cártel del Golfo". La Cronica (in Spanish). 3 March 2011. Archived from the original on 25 June 2013. Retrieved 21 January 2012.

csmonitor.com

Cattan, Nacha (7 November 2010). "Killing of top Mexico drug lord 'Tony Tormenta' may boost rival Zetas cartel". CSMonitor. Archived from the original on 22 October 2012. Retrieved 1 August 2011.

dea.gov

"$2 Million Reward Offered Leading to the Arrest or Conviction of Drug Traffickers". Drug Enforcement Administration. 14 December 2000. Archived from the original on 3 February 2007.

diariopresencia.com

Carvallo Guzmán, Indira (14 November 2011). "En Veracruz, PGR captura a tres personas por el tráfico de personas en el sur". Diario Presencia (in Spanish). Archived from the original on 4 August 2023. Retrieved 21 January 2012.

doi.org

Brophy, Stephanie (August 2008). "Mexico: Cartels, Corruption and Cocaine: A Profile of the Gulf Cartel". Global Crime. 9 (3): 248–261. doi:10.1080/17440570802254353. S2CID 145558452.

economist.com

"Mexico's drug war: A pax narcotica?". The Economist. 7 January 2011. Archived from the original on 26 November 2011. Retrieved 28 December 2011.

eldiariodecoahuila.com.mx

"Caen líderes del Cártel del Golfo". El Diario de Coahuila. 6 March 2011. Archived from the original on 12 July 2011. Retrieved 22 January 2012.

eldiariodevictoria.com.mx

"Batallones son parte de la estrategia de seguridad". El Diario de Ciudad Victoria (in Spanish). 16 November 2011. Archived from the original on 14 May 2012. Retrieved 2 January 2012.

eleconomista.com.mx

"Se fugan 40 reos de Penal de Matamoros". El Economista. 25 March 2010. Archived from the original on 27 March 2010. Retrieved 2 January 2012.

elfinanciero.com.mx

"Como funcionario, Cabeza de Vaca amasa fortuna de 951 mdp". June 2016. Archived from the original on 19 August 2016. Retrieved 11 December 2016.

elmundo.es

G. García, Jacobo (11 July 2010). "Tres militares, 'Tony Tormenta' y un periodista". El Mundo. Archived from the original on 10 November 2010. Retrieved 1 August 2011.

elnuevoheraldo.com

"Los Zetas tienen el plato servido tras muerte de 'Tony Tormenta': Expertos". El Nuevo Heraldo. Archived from the original on 24 April 2012. Retrieved 1 December 2011.

elpais.com

Muñoz, Juan Miguel (16 January 1996). "México detiene y entrega a Estados Unidos a su principal narcotraficante". El País.

elpasotimes.com

"Reputed Gulf cartel leader killed in Mexico shootout". El Paso Times. Archived from the original on 29 July 2012. Retrieved 29 November 2011.

elporvenir.com.mx

"Revelan que desertor del Ejército mexicano liderea Cártel del Golfo". El Porvenir. 3 February 2008. Archived from the original on 6 April 2012.

elregional.com.mx

Rendon, Francisco (9 November 2011). "Desintegró PFP peligrosa célula del Cartel del Golfo". El Regional del Sur (in Spanish). Retrieved 22 January 2012.

elsiglodedurango.com.mx

"Detienen a presunto implicado en lavado de dinero". El Siglo de Torreón (in Spanish). 23 November 2009. Retrieved 21 January 2012.

elsiglodetorreon.com.mx

"Busca PGR contra 3 ex gobernadores de Tamaulipas". El Siglo de Torreón. 30 January 2012. Archived from the original on 21 June 2013. Retrieved 31 January 2012.
"Rescatan a 51 inmigrantes secuestrados cerca de frontera". El Siglo de Torreón. April 2011. Archived from the original on 21 June 2013. Retrieved 21 January 2012.
"Pemex, botín del narco y de mafias internas: escritora". El Siglo de Torreón (in Spanish). 28 December 2011. Retrieved 22 January 2012.

eluniversal.com.mx

"Ejecución de "El Concorde" detonó guerra en Tamaulipas". El Universal. 7 March 2010. Archived from the original on 11 March 2010. Retrieved 9 October 2011.
Hernández, Jaime (4 March 2010). "EU: alarma guerra "Zetas"-El Golfo". El Universal. Archived from the original on 8 October 2012. Retrieved 4 March 2010.
""El Coss", nuevo "amo" del grupo". El Universal. Archived from the original on 19 April 2012. Retrieved 7 December 2011.
"Tony Tormenta muere abatido". El Universal. Archived from the original on 9 November 2010. Retrieved 29 November 2011.
"Operativo contra Tony Tormenta dejó 8 muertos". El Universal. Archived from the original on 9 November 2010. Retrieved 29 November 2011.
"Los Escorpiones, temible escolta de Tormenta". El Universal. 5 November 2010. Archived from the original on 9 November 2010. Retrieved 2 January 2012.
Gomez, Francisco (31 December 2008). ""Los Zetas" por dentro". El Universal. Archived from the original on 3 January 2009. Retrieved 2 January 2012.
"Migrantes, 72 muertos de fosa en Tamaulipas". El Universal. 25 August 2010. Archived from the original on 12 October 2012. Retrieved 28 December 2011.
"Narcopolítica en Tamaulipas". El Universal. 29 June 2010. Archived from the original on 5 February 2012. Retrieved 28 December 2011.
Alemán, Ricardo (12 January 2010). "Tamaulipas; PRI y narco". El Universal. Archived from the original on 25 June 2013. Retrieved 28 December 2011.
"Ciudadana graba evidencias de balaceras en Tamaulipas". El Universal. 2 March 2010. Archived from the original on 10 October 2012. Retrieved 4 January 2012.
"Alcalde admite psicosis por violencia en Reynosa". El Universal. 25 February 2010. Archived from the original on 25 June 2013. Retrieved 4 January 2012.
"García Cabeza de Vaca gana a priísta Hinojosa". 6 June 2016. Archived from the original on 14 August 2016. Retrieved 11 December 2016.
"Se fugan 40 reos de penal en Matamoros". El Universal. 25 March 2010. Archived from the original on 22 September 2012. Retrieved 2 January 2012.
"Se fugan 59 reos en Nuevo Laredo". El Universal. 16 July 2011. Archived from the original on 3 September 2011. Retrieved 2 January 2012.
"Acusan a estados de incumplir homologación salarial policiaca". El Universal (in Spanish). 26 September 2011. Archived from the original on 25 June 2013. Retrieved 2 January 2012.
"Rompen pacto cárteles de Juárez y de Sinaloa". El Universal (in Spanish). 10 May 2008. Archived from the original on 12 October 2012. Retrieved 2 August 2011.
"Ejército detiene a lugarteniente del cártel del Golfo". El Universal. 2 June 2009. Archived from the original on 12 October 2012. Retrieved 6 August 2011.
Gomora, Doris (25 December 2011). "Cárteles "cobran piso" en EU: DEA". El Universal (in Spanish). Archived from the original on 25 June 2013. Retrieved 24 January 2012.
De la Luz Gonzalez, Maria (22 December 2008). "Operación 'hormiga', en el tráfico de armas". El Universal. Archived from the original on 25 June 2013. Retrieved 22 January 2012.

www2.eluniversal.com.mx

Peralta González, César (12 July 2001). "Falleció el fundador del cártel del Golfo". El Universal. Archived from the original on 28 March 2012.
Medellín, Alejandro (4 February 2011). "Medina Garza en 'La Palma'". El Universal. Archived from the original on 28 March 2012.
Ruiz, José Luis (3 April 2001). "Caen 21 miembros de cártel del Golfo". El Universal. Archived from the original on 28 March 2012.
Ramírez, Ignacio (10 April 2000). "La disputa del narcopoder". El Universal. Archived from the original on 28 March 2012.
"Surge nuevo 'narcoperfil". El Universal. Archived from the original on 11 January 2012. Retrieved 9 December 2011.
"Cae Osiel Cárdenas: Se enfrentó a tiros con el Ejército". El Universal. 15 March 2003. Archived from the original on 28 March 2012.
Aponte, David (5 January 2005). "Líderes narcos pactan en La Palma trasriego de droga". El Universal. Archived from the original on 28 March 2012.
"Maneja Osiel mafia desde la carcel, prueban". El Universal. Archived from the original on 19 April 2012. Retrieved 5 December 2011.
"Tiene nuevo lider del cartel del Golfo". El Universal. Archived from the original on 19 April 2012. Retrieved 1 December 2011.
"Hay pruebas sobre nexos de priistas con narco: PAN". El Universal. 21 October 2004. Archived from the original on 19 April 2012. Retrieved 28 December 2011.

eluniversal.mx

""Los Zetas" se salen de control". El Universal. Archived from the original on 25 April 2012. Retrieved 1 December 2011.

enctoday.com

"Head of Gulf Cartel killed in Matamoros shootout". The Monitor. Archived from the original on 21 April 2012. Retrieved 6 December 2011.

esmas.com

www2.esmas.com

"Detienen a un líder del Cártel del Golfo en Tabasco". Esmas.com. Notimex. 7 September 2008. Archived from the original on 23 January 2010. Retrieved 6 August 2011.
"Ocho horas de balaceras, en Matamoros". Esmas Noticias. Archived from the original on 14 November 2010. Retrieved 29 November 2011.

esmas.com

"Nuevo auto de formal prisión a Osiel Cárdenas". Esmas.com. Notimex. August 2005. Archived from the original on 4 October 2012.

ethz.ch

isn.ethz.ch

"The Gulf-Zeta Split and the Praetorian Revolt". ISN. 7 April 2010. Archived from the original on 2 April 2012. Retrieved 9 October 2011.

excelsior.com.mx

Moreno, Martín (10 April 2011). "Tamaulipas: gobierno fallido". Excélsior. Archived from the original on 11 June 2012. Retrieved 28 December 2011.
"Policías de Tamaulipas ganan 3 mil 618 pesos". Excelsior (in Spanish). 25 September 2011. Archived from the original on 12 October 2011. Retrieved 2 January 2012.
"Expulsan a mil 650 policías de Tamaulipas por pérdida de confianza". Excelsior (in Spanish). 7 November 2011. Archived from the original on 11 June 2012. Retrieved 2 January 2012.
Vega, Aurora (7 August 2011). "Surgen cuatro grupos del narco en 2011; El Chapo es el capo más poderoso". Excelsior (in Spanish). Archived from the original on 19 March 2012. Retrieved 7 August 2011.
Vega, Aurora (6 November 2010). "Otro Cárdenas Guillén hereda la organización". Excelsior. Archived from the original on 19 March 2012. Retrieved 6 August 2011.
Vicenteño, David (30 June 2019). "Cae en Naucalpan 'El Betito', sobrino de Osiel Cárdenas". Excelsior. Retrieved 20 December 2020.

fas.org

Beittel, June S. (7 September 2011). "Mexico's Drug Trafficking Organizations: Source and Scope of the Rising Violence" (PDF). Congressional Research Service. Archived (PDF) from the original on 1 March 2011. Retrieved 28 July 2016.
Cook, Colleen W. (October 2007). "CRS Report for Congress: Mexico's Drug Cartels" (PDF). Congressional Research Service: 35. Archived (PDF) from the original on 9 October 2022. Retrieved 28 July 2016.

fbi.gov

"Osiel Cardenas-Guillen". Federal Bureau of Investigation. Archived from the original on 15 August 2012. Retrieved 24 February 2010.

archives.fbi.gov

"Osiel Cardenas-Guillen, Former Head of the Gulf Cartel, Sentenced to 25 Years' Imprisonment". Federal Bureau of Investigation. 24 February 2010. Archived from the original on 4 January 2017.

findlaw.com

caselaw.findlaw.com

"UNITED STATES v. GARCIA ABREGO". United States Court of Appeals: Fifth Circuit. Archived from the original on 14 August 2012. Retrieved 27 January 2012.

foxnews.com

latino.foxnews.com

"Army troops capture a Zetas cartel boss in northern Mexico". Fox News Latino. 15 February 2011. Archived from the original on 28 March 2012. Retrieved 31 July 2011.

gao.gov

Ford, Jess T. (25 October 2007). "U.S. Assistance Has Helped Mexican Counternarcotics Efforts, but the Flow of Illicit Drugs into the United States Remains High" (PDF). Government Accountability Office: 27. Archived (PDF) from the original on 12 July 2011. Retrieved 12 August 2012.
"DTOs Have Expanded Operations in the United States". U.S. Government Accountability Office. Archived from the original on 17 January 2012. Retrieved 3 January 2012.

geopoliticalmonitor.com

"Mexico's Cartels Declare War on the Zetas". Geopolitical Monitor. 19 April 2010. Archived from the original on 29 March 2012.

ghostarchive.org

"Video inédito del la muerte de Cardenas Guillen, "Tony Tormenta"". YouTube. 6 November 2010. Archived from the original on 21 December 2021. Retrieved 9 December 2011.
"Balacera Matamoros: Convoy de Marinos". YouTube. 5 November 2010. Archived from the original on 21 December 2021. Retrieved 9 December 2011.
Cook, Colleen W. (October 2007). "CRS Report for Congress: Mexico's Drug Cartels" (PDF). Congressional Research Service: 35. Archived (PDF) from the original on 9 October 2022. Retrieved 28 July 2016.
Bowden, Charles (6 February 2011). "El sicario, un documental proscrito en México (2)". Archived from the original on 21 December 2021.
"Entrevista a el Mamito, presunto fundador de los Zetas". CNN Videos (in Spanish). 6 July 2011. Archived from the original on 21 December 2021.

globedia.com

"El cártel del Golfo soborna a periodistas para que no cubran los sucesos violentos". Globedia. 3 December 2010. Archived from the original on 4 January 2014. Retrieved 22 January 2012.

grimesandwarwick.com

Grimes, Dana M. (2010). "Law and Order in Mexico". GrimesandWarwick. Archived from the original on 11 January 2012.

house.gov

McCAUL, MICHAEL T. "A Line in the Sand: Confronting the Threat at the Southwest Border" (PDF). HOUSE COMMITTEE ON HOMELAND SECURITY. Archived from the original (PDF) on 11 September 2011. Retrieved 12 October 2011.

hoytamaulipas.net

Pérez González, Jorge (22 February 2009). "Mentes perversas". Hoy Tamaulipas. Archived from the original on 30 July 2014. Retrieved 27 January 2012.
"Policías de Tamaulipas aun no son confiables: Lomelí". Hoy Tamaulipas (in Spanish). 7 November 2011. Archived from the original on 2 May 2012. Retrieved 2 January 2012.

hstoday.us

Kimery, Anthony (6 December 2011). "Drug, Human Smuggling, Cartel Shootouts With Police Escalate in Rio Grande Valley". Homeland Security Today. Archived from the original on 22 January 2012. Retrieved 21 January 2012.

ibtimes.com

mx.ibtimes.com

"DATOS – Principales capos de la droga en México". International Business Times (in Spanish). Archived from the original on 15 July 2012. Retrieved 6 November 2010.

independent.co.uk

"The life and death of Tony the Storm". The Independent. 7 November 2010. Archived from the original on 10 November 2010. Retrieved 29 November 2011.

infobae.com

america.infobae.com

"El cártel de los Zetas tiende acuerdos de "no agresión y colaboración"". Infobae. 8 March 2011. Archived from the original on 30 May 2012. Retrieved 14 December 2011.
"En una balacera, muere "Tony Tormenta"". EFE, Milenio, Reforma, La Jornada. 11 May 2010. Archived from the original on 26 March 2012.

insightcrime.org

"Gulf Cartel". Insight: Organized Crime in the Americas. Archived from the original on 2 July 2012. Retrieved 19 September 2011.
Pachico, Elyssa (11 October 2011). "Death of Gulf Cartel 'Finance Chief' Sign of Internal Strife?". InSight Crime. Archived from the original on 9 August 2012. Retrieved 9 August 2012.
"Mexican Cartels Exploit North Africa Turmoil". Insight Crime. April 2011. Archived from the original on 4 April 2011. Retrieved 3 January 2012.
"Why the Jalisco Cartel Does Not Dominate Mexico's Criminal Landscape". 11 June 2020. Archived from the original on 14 June 2020. Retrieved 14 June 2020.

johnstonsarchive.net

Johnston, Robert. "Data on Mexican drug war violence". Terrorism, Counterterrorism, and Unconventional Warfare. Archived from the original on 4 January 2012. Retrieved 29 November 2011.

juanruizhealy.com

"Confirman militares enfrentamiento con narcotraficantes". El Mañana: Reynosa. 27 November 2009. Archived from the original on 5 January 2002.

justice.gov

"Drug Trafficking Organizations". National Drug Intelligence Center. Archived from the original on 27 November 2011. Retrieved 9 December 2011.
"High Ranking Gulf Cartel Member Sentenced in Washington, D.C., to 35 Years in Prison for Drug Trafficking". 13 May 2013. Archived from the original on 30 June 2013. Retrieved 1 April 2020.
"Former Gulf Cartel Leader Convicted of International Drug Trafficking Conspiracy". 9 January 2020. Archived from the original on 10 March 2020. Retrieved 1 April 2020.
Dodge, Angela. "JURY CONVICTS CARTEL ASSOCIATE OF CONSPIRACY TO KIDNAP AND KIDNAPPING". Department of Justice. Archived from the original on 4 January 2014. Retrieved 21 January 2012.
"South Texas High-Intensity Drug Trafficking Area Drug Market Analysis". National Drug Intelligence Center. Retrieved 8 December 2011.
"South Texas High-Intensity Drug Trafficking Area" (PDF). U.S. Department of Justice. Retrieved 8 December 2011.
"Texas Drug Threat Assessment". National Drug Intelligence Center. Retrieved 8 December 2011.
"South Texas Border and San Antonio Market Areas (2008)". National Drug Intelligence Center. Retrieved 8 December 2011.
"South Texas Border and San Antonio Market Areas (2007)". National Drug Intelligence Center.
"Alleged Mexican Cartel Leaders, Associates Targeted in Newest Effort to Combat Drug Trafficking Organizations". Drug Enforcement Administration. 20 July 2009. Archived from the original on 14 January 2012. Retrieved 14 December 2011.

krgv.com

"Major Arrests Expected to Shake Up Gulf Cartel". KRGV-TV. 13 December 2011. Archived from the original on 27 January 2013. Retrieved 10 August 2012.

kveo.com

"Shootings in Matamoros Kill "Tony Tormenta" and Nearly 100 People". KVEO News Center. 8 November 2010. Archived from the original on 21 March 2012. Retrieved 9 September 2011.

landlinemag.com

Morasch, Charlie (6 December 2011). "FBI: Trucking 'significant' in cartels' U.S. profitability". Landline. Archived from the original on 24 December 2012. Retrieved 3 January 2012.

lapoliciaca.com

"Zetas celebran caida de "Tony Tormenta" con narcomantas y narcopintas". La Policiaca. Archived from the original on 7 April 2012. Retrieved 29 November 2011.

latimes.com

Fineman, Mark (17 October 1996). "Mexican Drug Cartel Chief Convicted in U.S." Los Angeles Times. Archived from the original on 18 August 2016. Retrieved 20 February 2020.
Tobar, Hector (20 May 2007). "A cartel army's war within". Los Angeles Times. Archived from the original on 16 December 2017. Retrieved 20 February 2020.
Wilkinson, Tracy (13 September 2012). "Latest Mexico drug arrest may cripple Gulf cartel". Los Angeles Times. Archived from the original on 11 October 2012. Retrieved 12 October 2012.
Fineman, Mark (4 September 1995). "Drug Lord's Web of Payoffs Spans U.S.-Mexico Border". Los Angeles Times. Retrieved 22 January 2012.
Fineman, Mark (17 October 1996). "Mexican Drug Cartel Chief Convicted in U.S." Los Angeles Times. Retrieved 22 January 2012.
Kraul, Chris (6 November 2007). "Drug traffickers use submersibles to ferry narcotics". Los Angeles Times. Retrieved 19 February 2010.

lavozdetamaulipas.net

http://lavozdetamaulipas.net/soplan-fuertes-vientos-de-cambio-en-tamaulipas-cabeza-de-vaca/ ^{[permanent dead link]}

loc.gov

"Organized crime and terrorist activity in Mexico, 1999–2002" (PDF). Library of Congress. Archived (PDF) from the original on 19 October 2012. Retrieved 9 December 2011.

mcclatchydc.com

media.mcclatchydc.com

"Self-Propelled Semi-Submersible (SPSS) – Fact Sheet" (PDF). Joint Interagency Task Force South. 2008. Archived from the original (PDF) on 17 November 2020. Retrieved 19 February 2010. {{cite journal}}: Cite journal requires |journal= (help)

mexiconewsdaily.com

"Police arrest man believed to be Gulf Cartel's Oaxaca plaza chief". 20 June 2019. Archived from the original on 12 July 2019. Retrieved 12 July 2019.
"Police arrest ex-drug lord's nephew blamed for Tamaulipas violence". July 2019.

milenio.com

impreso.milenio.com

Alzaga, Ignacio (1 May 2009). "Relegan a familia de García Ábrego en cártel del Golfo". Milenio Noticias. Archived from the original on 18 May 2011.
"Indagan a familiar de El Señor de los Tráileres". Milenio Noticias. 18 November 2008. Archived from the original on 16 July 2012.
"Tony Tormenta escapó en 2 ocasiones: Marina". Milenio. 8 November 2010. Archived from the original on 14 July 2012. Retrieved 2 January 2012.
"DEA: acuerdan 3 cárteles alianza contra Los Zetas". Milenio. 5 March 2010. Archived from the original on 14 January 2012. Retrieved 28 January 2012.
Salas, Alejandro (February 2010). "Blindaje contra narcopolíticos en Tamaulipas". Milenio. Archived from the original on 16 July 2012. Retrieved 22 January 2012.
"La violencia nos rebasó, acepta Eugenio Hernández". Milenio. 28 August 2010. Archived from the original on 31 August 2010. Retrieved 4 January 2012.
"Crimen cobra cuotas a vecinos: Elizondo". Milenio (in Spanish). 15 April 2009. Archived from the original on 21 December 2009. Retrieved 24 January 2012.
"Detenidas con Calderón, 223 bandas de secuestradores". Milenio. 31 December 2011. Archived from the original on 14 January 2012. Retrieved 21 January 2012.
"Sin freno, extorsiones telefónicas". Milenio. 18 November 2008. Retrieved 21 January 2012.
"Comprar un policía cuesta $3,500 en NL". Milenio. 3 June 2009. Archived from the original on 9 April 2011. Retrieved 22 January 2012.
"Zetas desalojaron campo de Pemex en Tamaulipas". Milenio. February 2010. Archived from the original on 10 August 2010. Retrieved 22 January 2012.

milenio.com

"El cártel del Golfo echa a Los Zetas de Tamaulipas". Milenio Noticias. 5 April 2010. Archived from the original on 2 August 2011. Retrieved 31 July 2011.
"DEA: acuerdan 3 cárteles alianza contra Los Zetas". Milenio. Archived from the original on 29 June 2012. Retrieved 1 December 2011.
Mosso, Ruben (7 November 2010). "Operativo de seis meses llevó a abatimiento de Tony Tormenta: Secretaría de Marina". Milenio Noticias. Archived from the original on 8 September 2012. Retrieved 27 December 2011.
"Sicarios de los Beltrán Leyva y Zetas atacan a gente del Chapo en Sonora". Milenio. 2 July 2010. Archived from the original on 5 September 2012. Retrieved 28 January 2012.
"Asesinan a Rodolfo Torre Cantú, candidato al gobierno de Tamaulipas". Milenio Noticias. 28 June 2011. Archived from the original on 13 October 2012. Retrieved 28 December 2011.
"Arrestan nuevamente a Óscar Pérez Inguanzo, ex alcalde de Tampico". Milenio. 12 November 2011. Archived from the original on 28 January 2013. Retrieved 2 January 2012.
"Cae abatido por la Marina 'Tony Tormenta' en Matamoros". Milenio Noticias. 5 November 2010. Archived from the original on 15 October 2012. Retrieved 6 August 2011.
"Presentan a banda de secuestradores en Tamaulipas". Milenio. 9 December 2011. Archived from the original on 8 January 2012. Retrieved 21 January 2012.

tampico.milenio.com

Mosso, Rubén (1 August 2011). "Presentan a "El Yupo" líder de "Los Caballeros Templarios" en Apatzingán". Milenio Noticias (in Spanish). Archived from the original on 5 August 2011. Retrieved 2 August 2011.

msn.com

msnbc.msn.com

"Arrests of Mexican drug cartel leaders in Texas raise concerns". MSN BC News. 3 November 2011. Retrieved 3 January 2012.^{[dead link]}

mundonarco.com

"Cártel de 'Los Zetas'". Mundo Narco. 15 January 2011. Archived from the original on 18 January 2011.
"Video Interrogatorio de Jesús Enrique Rejón Aguilar "El Mamito"". Mundo Narco. 5 July 2011. Archived from the original on 9 July 2011.
"Miguel Morales Treviño, Z-40, un narco violento ya está en la mira". Mundo Narco. 22 December 2010. Archived from the original on 23 December 2010.
"Va Marina por 'halcones' del crimen organizado". Blog del Narco. 21 April 2011. Archived from the original on 27 August 2011.

mundonarco.org

"La guerra del cártel del Golfo y Los Zetas, mañana 24 de febrero se cumple un año". Mundo Narco. 23 February 2011. Archived from the original on 16 December 2013. Retrieved 28 January 2012.

mysanantonio.com

Buch, Json (28 February 2011). "Dangers higher for federal agents". San Antonio Express-News. Archived from the original on 27 November 2018.

ncjrs.gov

"An Overview of Federal Drug Control Programs on the Southwest Border". Office of National Drug Control Policy. Archived from the original on 28 August 2008. Retrieved 8 December 2011.

ndsn.org

"FBI Adds International Drug Dealer to "Most-Wanted" List". National Drug Strategy Network. Archived from the original on 27 September 2011. Retrieved 31 July 2011.
"Mexican "Gulf Cartel" Leader Juan Garcia Abrego Convicted on U.S. Drug Charges". National Drug Strategy Network. Archived from the original on 27 September 2011. Retrieved 31 July 2011.

ndu.edu

"Uncovering the link between the Mexican drug cartels" (PDF). National Defense University: Center for Hemispheric Defense Studies. Archived from the original (PDF) on 15 June 2011.

newstaco.com

"Gulf Cartel leader killed, 55 others in Matamoros, Mexico". News Taco: The Latino Daily. Archived from the original on 2 May 2012. Retrieved 6 December 2011.

nytimes.com

"At Drug Trial, Mexican Suspect Faces Accuser". The New York Times. 20 September 1996. Archived from the original on 6 November 2012. Retrieved 18 September 2012.
Dillon, Sam (4 February 1996). "Mexican Drug Gang's Reign of Blood". The New York Times. Archived from the original on 6 November 2012. Retrieved 18 September 2012.
"At Drug Trial, Mexican Suspect Faces Accuser". The New York Times. 20 September 1996. Archived from the original on 6 November 2012. Retrieved 27 January 2012.
Weiner, Tim (19 January 2001). "Mexico Agrees To Extradite Drug Suspect To California". The New York Times. Archived from the original on 6 March 2016. Retrieved 16 February 2017.
Dillon, Sam (16 January 1996). "Mexico Arrests A Top Suspect in Drug Trade". The New York Times. Retrieved 22 January 2012.
Kushner, David (23 April 2009). "Drug-Sub Culture". The New York Times. Retrieved 25 April 2009.

oem.com.mx

Zendejas, Gabriel. "Detectan a poderoso capo del Cártel del Golfo". La Prensa. Archived from the original on 11 October 2012. Retrieved 30 April 2008.
"Se lanza la PGR por más líderes del cártel del Golfo". Organización Editorial Mexicana. Archived from the original on 22 June 2013. Retrieved 6 December 2011.

orlandosentinel.com

"Mexican Drug Empire Built With Murder, Ex-agent Says". Orlando Sentinel. 19 September 1996. Retrieved 22 January 2012.

pbs.org

Lupsha, Peter. "A Chronology | Murder, Money, & Mexico". University of New Mexico. Archived from the original on 24 February 1999. Retrieved 29 August 2017.

perfil.com

"¿Qué es el Cartel de Sinaloa?". Perfil.com. 24 August 2008. Archived from the original on 3 March 2016. Retrieved 31 July 2011.

pgr.gob.mx

"EJERCITÓ PGR ACCIÓN PENAL CONTRA DOS PERSONAS, POR DELINCUENCIA ORGANIZADA Y SECUESTRO". Procuraduria General de la Republica (in Spanish). 14 November 2011. Archived from the original on 4 January 2014. Retrieved 21 January 2012.

policiasysociedad.org

"Loz Zetas: Grupo Paramilitar Mexicano" (PDF). Policias y Sociedad. Archived from the original (PDF) on 26 June 2011. Retrieved 6 August 2011.

preptam.org

"Programa de Resultados Electorales Preliminares Tamaulipas 2016". www.preptam.org. Archived from the original on 3 July 2016.

proceso.com.mx

"La batalla del cártel del Golfo y "Los Zetas" por la Huasteca". Proceso. 31 December 2011. Archived from the original on 31 January 2012. Retrieved 28 January 2012.
"Facciones del Cártel del Golfo y Los Zetas buscan aliarse para poner fin a agresiones contra la población" (in Spanish). Proceso. 11 November 2014. Archived from the original on 11 November 2014. Retrieved 11 November 2014.
"Tamaulipas: Rastros de narco en el precandidato panista – Proceso". 16 December 2009. Archived from the original on 16 August 2016. Retrieved 11 December 2016.
"Tamaulipas: gobernadores y narco, hermanados – Proceso". 28 May 2016. Archived from the original on 29 October 2016. Retrieved 11 December 2016.
"Departamento del Tesoro investiga a candidato del PRI al gobierno de Tamaulipas por lavado – Proceso". 1 June 2016. Archived from the original on 17 November 2016. Retrieved 11 December 2016.

profdevjournal.org

Althaus, Dudley (2009). "Texas-Mexico Borderlanconfrontads: The Slide Toward Chaos" (PDF). The International Journal of Continuing Social Work Education. 12 (10974911): 57. Archived (PDF) from the original on 6 May 2015. Retrieved 27 January 2012.

reuters.com

"Cartel Inc: In the company of Narcos". Reuters. 14 January 2010. Archived from the original on 16 May 2021. Retrieved 3 January 2012.
Somerville, Glenn (20 July 2009). "U.S. launches drive against Mexican drug cartel". Reuters. Retrieved 18 August 2009.

samuellogan.com

Logan, Sam (2006). The Reality of the Mexican Mega Cartel (PDF). p. 21. Archived (PDF) from the original on 5 October 2011. Retrieved 2 August 2011.

semana.com

"México: Los Zetas rompen con el Cartel del Golfo". BBC Mundo | Semana.com. 26 February 2010. Archived from the original on 24 September 2012. Retrieved 31 July 2011.

semanticscholar.org

api.semanticscholar.org

Brophy, Stephanie (August 2008). "Mexico: Cartels, Corruption and Cocaine: A Profile of the Gulf Cartel". Global Crime. 9 (3): 248–261. doi:10.1080/17440570802254353. S2CID 145558452.

senate.gov

drugcaucus.senate.gov

"U.S. AND MEXICAN RESPONSES TO MEXICAN DRUG TRAFFICKING ORGANIZATIONS" (PDF). UNITED STATES SENATE CAUCUS. May 2011. Archived from the original (PDF) on 26 September 2011.

foreign.senate.gov

"Testimony of Thomas A. Shannon" (PDF). United States Senate. Archived (PDF) from the original on 3 May 2012. Retrieved 3 January 2012.

sexenio.com.mx

Sánchez López, Daniel (9 April 2011). "Sin resolver origen de narcofosas en Tamaulipas". Sexenio. Archived from the original on 28 July 2012. Retrieved 28 December 2011.

shavemagazine.com

Ensinger, Jason. "Mexico's War on Drugs". Shave Magazine. Archived from the original on 7 October 2011. Retrieved 2 August 2011.

stanfordreview.org

bellum.stanfordreview.org

"The Mexican Drug War and the Thirty Years' War". Bellum: The Stanford Review. Archived from the original on 5 March 2011. Retrieved 8 February 2011.

state.gov

"Narcotics Rewards Program". United States Department of State. Archived from the original on 28 November 2017.

tabascohoy.com

"Capturan al líder de los 'Zetas' en Tabasco". Tabasco Hoy. 8 September 2008. Archived from the original on 27 September 2011. Retrieved 6 August 2011.

terra.com.mx

"Historia y estructura del Cártel del Golfo". Terra Noticias. Archived from the original on 9 November 2010. Retrieved 1 December 2011.
"Opinión sobre posible corrupción en Matamoros". Terra (in Spanish). 5 May 2011. Archived from the original on 12 September 2012. Retrieved 2 January 2012.

terra.mx

"Se fugan 59 reos en Nuevo Laredo tras enfrentamiento". Terra Noticias. 15 July 2011. Archived from the original on 26 April 2012. Retrieved 2 January 2012.

theguardian.com

Newspapers, Mcclatchy (22 April 2009). "Mexican cartels funneling shipments to Italian mafia through Texas". The Guardian. Archived from the original on 11 February 2017. Retrieved 9 February 2017.
Tuckman, Jo (7 November 2010). "Top Mexican drugs lord killed in fierce gunbattle with military". The Guardian. Archived from the original on 9 November 2010. Retrieved 9 December 2011.

themonitor.com

Sherman, Chris (25 January 2012). "Texas jury convicts alleged Mexican cartel hit man". The Monitor. Archived from the original on 12 September 2012. Retrieved 26 January 2012.
"Cartel leader believed slain in Reynosa violence". The Monitor. 17 February 2009. Archived from the original on 20 May 2009.
"U.S. turns over custody of Cardenas-Guillen helicopters to businesses". The Monitor. 29 March 2011. Archived from the original on 2 April 2011. Retrieved 28 January 2012.
"Mexican cartels strategize to win hearts and minds". The Monitor. Archived from the original on 14 June 2012. Retrieved 6 December 2011.
"Authorities: Gulf Cartel, Zetas gang up on each other as arrangement dies". The Monitor. 10 March 2010. Archived from the original on 12 September 2012.
"Gulf Cartel lieutenant's associates enter plea agreement". The Monitor. 13 December 2011. Archived from the original on 14 June 2012. Retrieved 14 December 2011.
"Death toll mounts in Matamoros shootout as sporadic fighting continues". The Monitor. Archived from the original on 14 June 2012. Retrieved 6 December 2011.
"Matamoros braces for more violence". The Monitor. Archived from the original on 5 April 2012. Retrieved 29 November 2011.
"Internal struggle in the Gulf Cartel could weaken the organization". The Monitor. 29 October 2011. Archived from the original on 16 August 2012. Retrieved 9 August 2012.
"Mexico: Gulf Cartel lieutenant, his right-hand man captured". The Monitor. 30 August 2011. Archived from the original on 9 August 2012. Retrieved 9 August 2012.
"Gulf Cartel lieutenant linked to various incidents on U.S side of border". The Monitor. 2 January 2012. Archived from the original on 18 August 2012. Retrieved 10 August 2012.
"Sources: Fatal gunshots on McAllen expressway point to Gulf Cartel". The Monitor. 27 September 2011. Archived from the original on 11 August 2012.
Ortiz, Ildelfonso (4 November 2011). "Gulf Cartel members charged in Hidalgo kidnapping". The Monitor. Archived from the original on 1 January 2012. Retrieved 21 January 2012.
"FBI: Drug money threatens to corrupt Valley cops". The Monitor. 25 December 2010. Retrieved 22 January 2012. ^{[permanent dead link]}
"Ringleader behind Gulf Cartel gun, drug trafficking ring in McAllen pleads guilty". The Monitor. 6 September 2011. Archived from the original on 14 September 2012. Retrieved 22 January 2012.
Taylor, Jared (17 November 2011). "Shots near Weslaco lead cops to Gulf Cartel arms smuggling". The Monitor. Retrieved 22 January 2012. ^{[permanent dead link]}

time.com

"Juan García Abrego – Top Ten Most Wanted Fugitives". TIMES Magazine. 23 June 2011. Archived from the original on 23 March 2010.
Fitzpatrick, Laura (23 June 2011). "Juan Garcia Abrego". TIME Special | CNN.com. Archived from the original on 23 March 2010.

tribunalatina.com

"El cártel del Golfo compra periodistas con "narcodólares", prostitutas y alcohol". Tribuna Latina (in Spanish). 3 March 2010. Retrieved 21 January 2012.

truthdig.com

Deibert, Michael (16 May 2011). "Cartel Wars". Truthdig, L.L.C. Archived from the original on 17 September 2016. Retrieved 6 December 2011.

typepad.com

borderviolenceanalysis.typepad.com

Longmire, Sylvia. "TCO 101: The Gulf Cartel". Mexico's drug war. Archived from the original on 25 October 2011. Retrieved 9 October 2011.
Longmire, Sylvia. "Authorities Say Cartel Leader's Death Won't Curb Violence". Mexico's Drug War. Archived from the original on 24 November 2010. Retrieved 9 November 2010.
Longmire, Sylvia. "Mexico's PRI Names Presidential Candidate". Mexico's Drug War. Archived from the original on 27 January 2012. Retrieved 28 December 2011.

unam.mx

jornada.unam.mx

Lira Saade, Carmen (15 March 2003). "La historia del cártel del Golfo". La Jornada. Archived from the original on 10 November 2005. Retrieved 31 July 2011.
Castillo, Gustavo (2 May 2009). "Desplazan a los García Ábrego en liderato del cártel del Golfo". La Jornada. Archived from the original on 15 April 2016. Retrieved 30 July 2011.
"Desertor del Ejército, nuevo líder del cártel del Golfo: informes castrenses". La Jornada. 3 February 2008. Archived from the original on 8 February 2012. Retrieved 6 August 2011.
"Ejército, Armada y PF van tras El Coss, segundo heredero del cártel del Golfo". La Jornada. Archived from the original on 15 September 2011. Retrieved 1 December 2011.
"Detonaron más de 300 granadas en el operativo contra Tony Tormenta". La Jornada. 8 November 2010. Archived from the original on 11 October 2011. Retrieved 27 December 2011.
"Muere Tony Tormenta luego de ocho horas de tiroteos con efectivos federales en Matamoros". La Jornada. Archived from the original on 16 September 2011. Retrieved 29 November 2011.
"Zozobra en Tamaulipas luego de caída del líder del cártel del Golfo". La Jornada. Archived from the original on 8 June 2011. Retrieved 29 November 2011.
"La guerra Golfo-zetas, en 11 municipios tamaulipecos; nueve son fronterizos con EU". La Jornada. 12 November 2010. Archived from the original on 22 October 2012. Retrieved 28 January 2012.
"Enfrentamientos entre el cártel del Golfo y Los Zetas paralizaron Nuevo Laredo". La Jornada. 20 May 2011. Archived from the original on 17 November 2015. Retrieved 28 January 2012.
"El cártel del Golfo, junto con sus nuevos socios, es dueño de todo en Matamoros". La Jornada. 8 May 2011. Archived from the original on 16 September 2011. Retrieved 28 December 2011.
"Captura PGR a El Barbas y otros cuatro presuntos narcotraficantes". La Jornada (in Spanish). 18 April 2007. Retrieved 21 January 2012.
"Se triplica número de homicidios de prostitutas relacionadas con el narco". La Jornada. 21 July 2011. Retrieved 21 January 2012.
Castillo García, Gustavo (2 April 2008). "El cártel del Golfo controla la piratería en Michoacán". La Jornada. Retrieved 22 January 2012.

unhcr.org

"Mexico: La Maña gang; whether this group is involved in smuggling people into the United States (US); whether this group has links to the criminal group Los Zetas". Immigration and Refugee Board of Canada. 16 October 2008. Retrieved 21 January 2012.

univision.com

noticias.univision.com

"Los Zetas y el cártel del Golfo se pelean por Monterrey". Univision. Archived from the original on 24 December 2011. Retrieved 28 January 2012.
"PGR emitió alerta migratoria contra tres ex gobernadores de Tamaulipas". Univision. 30 January 2012. Archived from the original on 22 June 2013. Retrieved 31 January 2012.
"El luchador mexicano 'Estrella Dorada' es acusado de secuestro". Univision. 10 January 2012. Archived from the original on 30 January 2012. Retrieved 21 January 2012.
"Robo de combustible en México, en manos de cárteles del narcotráfico". Univision. 28 December 2011. Retrieved 22 January 2012.

univision.com

"Autoridades mexicanas capturan a Mario Cárdenas 'El Betito', sobrino del exlíder del Cártel del Golfo".

unodc.org

"Cocaine trafficking in Western Africa" (PDF). United Nations: Office on Drugs and Crime. Archived (PDF) from the original on 24 November 2007. Retrieved 3 January 2012.

usatoday.com

"Nogales drug tunnel found". USA Today. 23 November 2011. Retrieved 8 December 2011.

uscourts.gov

ca5.uscourts.gov

"United States of America v. Cardenas-Guillen" (PDF). United States Court of Appeals for the Southern District of Texas. Archived (PDF) from the original on 3 March 2012. Retrieved 28 January 2012.

uwec.edu

"One river, one country". The Economist. 1997. Archived from the original on 22 February 2013. Retrieved 22 January 2012.

valleycentral.com

"New details released about Gulf Cartel leader's death". Action 4 News. Archived from the original on 6 April 2012. Retrieved 29 November 2011.
Lopez, Katie (18 November 2011). "San Juan kidnapping ring suspects face judge". Action 4 News. Archived from the original on 4 January 2014. Retrieved 21 January 2012.
Caranza, Rafael (4 November 2011). "Alleged Gulf Cartel members charged with Hidalgo kidnapping". Valley Central. Archived from the original on 4 January 2014. Retrieved 21 January 2012.
"San Juan kidnapping ring reportedly had Gulf Cartel ties". Action 4 News. 17 November 2011. Archived from the original on 4 January 2014. Retrieved 21 January 2012.

valleymorningstar.com

"War between Gulf Cartel, Zetas marks year anniversary". The Brownsville Herald: Valley Morning Star. 7 March 2011. Archived from the original on 5 October 2011. Retrieved 31 July 2011.
"Carnage along border continues". The Brownsville Herald. Archived from the original on 11 November 2010. Retrieved 29 November 2011.
Taylor, Jared (21 December 2011). "Palmview chase suspect: Gulf Cartel forced me to smuggle". The Monitor. Retrieved 21 January 2012.^{[permanent dead link]}

vanguardia.com.mx

"La lucha entre 'golfos' y 'zetas' desgarra a Tamaulipas". La Vanguardia. 16 August 2010. Archived from the original on 15 August 2017. Retrieved 11 October 2011.
"Otro Cárdenas Guillén hereda la organización". Vanguardia. 8 November 2010. Archived from the original on 2 April 2012. Retrieved 9 October 2011.
"Los Escorpiones, temible escolta de Tormenta". Vanguardia. Archived from the original on 12 November 2010. Retrieved 29 November 2011.
"Identifican a nuevo grupo armado del cártel del Golfo que protegía a Tony Tormenta". Vanguardia. Archived from the original on 30 October 2013. Retrieved 29 November 2011.
"Van mil 700 desaparecidos en Nuevo León y Tamaulipas, según reportes a militares". La Vanguardia. 4 October 2010. Archived from the original on 5 April 2012. Retrieved 21 January 2012.
"Federales capturan a líderes del Cártel del Golfo en Tamaulipas". La Vanguardia. 5 March 2011. Retrieved 21 January 2012.
"Militares piratas en México". La Vanguardia. 23 July 2010. Archived from the original on 28 July 2010. Retrieved 21 January 2012.

web.archive.org

Newspapers, Mcclatchy (22 April 2009). "Mexican cartels funneling shipments to Italian mafia through Texas". The Guardian. Archived from the original on 11 February 2017. Retrieved 9 February 2017.
"Cocaine Comrades: The Balkan Ties of a Fallen Colombian Drug [Trafficker". 6 December 2021. Archived from the original on 1 May 2022. Retrieved 22 April 2022.
"Monte Escobedo, Zacatecas: Cartel del Golfo Burns Captured Combatants". Borderland Beat. 21 June 2021. Archived from the original on 15 August 2021. Retrieved 15 August 2021.
"La lucha entre 'golfos' y 'zetas' desgarra a Tamaulipas". La Vanguardia. 16 August 2010. Archived from the original on 15 August 2017. Retrieved 11 October 2011.
"El cártel del Golfo echa a Los Zetas de Tamaulipas". Milenio Noticias. 5 April 2010. Archived from the original on 2 August 2011. Retrieved 31 July 2011.
"U.S. AND MEXICAN RESPONSES TO MEXICAN DRUG TRAFFICKING ORGANIZATIONS" (PDF). UNITED STATES SENATE CAUCUS. May 2011. Archived from the original (PDF) on 26 September 2011.
Beittel, June S. (7 September 2011). "Mexico's Drug Trafficking Organizations: Source and Scope of the Rising Violence" (PDF). Congressional Research Service. Archived (PDF) from the original on 1 March 2011. Retrieved 28 July 2016.
McCAUL, MICHAEL T. "A Line in the Sand: Confronting the Threat at the Southwest Border" (PDF). HOUSE COMMITTEE ON HOMELAND SECURITY. Archived from the original (PDF) on 11 September 2011. Retrieved 12 October 2011.
"Narcotics Rewards Program". United States Department of State. Archived from the original on 28 November 2017.
Peralta González, César (12 July 2001). "Falleció el fundador del cártel del Golfo". El Universal. Archived from the original on 28 March 2012.
Lira Saade, Carmen (15 March 2003). "La historia del cártel del Golfo". La Jornada. Archived from the original on 10 November 2005. Retrieved 31 July 2011.
"FBI Adds International Drug Dealer to "Most-Wanted" List". National Drug Strategy Network. Archived from the original on 27 September 2011. Retrieved 31 July 2011.
Vindell, Tony (15 October 1994). "Reputed drug lord's brother under arrest". The Brownsville Herald. Archived from the original on 23 March 2012. Retrieved 31 July 2011.
"At Drug Trial, Mexican Suspect Faces Accuser". The New York Times. 20 September 1996. Archived from the original on 6 November 2012. Retrieved 18 September 2012.
Dillon, Sam (4 February 1996). "Mexican Drug Gang's Reign of Blood". The New York Times. Archived from the original on 6 November 2012. Retrieved 18 September 2012.
"Juan García Abrego – Top Ten Most Wanted Fugitives". TIMES Magazine. 23 June 2011. Archived from the original on 23 March 2010.
"Mexican "Gulf Cartel" Leader Juan Garcia Abrego Convicted on U.S. Drug Charges". National Drug Strategy Network. Archived from the original on 27 September 2011. Retrieved 31 July 2011.
Fineman, Mark (17 October 1996). "Mexican Drug Cartel Chief Convicted in U.S." Los Angeles Times. Archived from the original on 18 August 2016. Retrieved 20 February 2020.
Fitzpatrick, Laura (23 June 2011). "Juan Garcia Abrego". TIME Special | CNN.com. Archived from the original on 23 March 2010.
"At Drug Trial, Mexican Suspect Faces Accuser". The New York Times. 20 September 1996. Archived from the original on 6 November 2012. Retrieved 27 January 2012.
Tedford, Deborah (2 July 1996). "Garcia Abrego is U.S. citizen, officials insist". The Houston Chronicle. Archived from the original on 1 November 2013. Retrieved 27 January 2012.
"UNITED STATES v. GARCIA ABREGO". United States Court of Appeals: Fifth Circuit. Archived from the original on 14 August 2012. Retrieved 27 January 2012.
Pérez González, Jorge (22 February 2009). "Mentes perversas". Hoy Tamaulipas. Archived from the original on 30 July 2014. Retrieved 27 January 2012.
Althaus, Dudley (2009). "Texas-Mexico Borderlanconfrontads: The Slide Toward Chaos" (PDF). The International Journal of Continuing Social Work Education. 12 (10974911): 57. Archived (PDF) from the original on 6 May 2015. Retrieved 27 January 2012.
"Historia y estructura del Cártel del Golfo". Terra Noticias. Archived from the original on 9 November 2010. Retrieved 1 December 2011.
Castillo, Gustavo (2 May 2009). "Desplazan a los García Ábrego en liderato del cártel del Golfo". La Jornada. Archived from the original on 15 April 2016. Retrieved 30 July 2011.
Alzaga, Ignacio (1 May 2009). "Relegan a familia de García Ábrego en cártel del Golfo". Milenio Noticias. Archived from the original on 18 May 2011.
Weiner, Tim (19 January 2001). "Mexico Agrees To Extradite Drug Suspect To California". The New York Times. Archived from the original on 6 March 2016. Retrieved 16 February 2017.
Lupsha, Peter. "A Chronology | Murder, Money, & Mexico". University of New Mexico. Archived from the original on 24 February 1999. Retrieved 29 August 2017.
Medellín, Alejandro (4 February 2011). "Medina Garza en 'La Palma'". El Universal. Archived from the original on 28 March 2012.
Zendejas, Gabriel. "Detectan a poderoso capo del Cártel del Golfo". La Prensa. Archived from the original on 11 October 2012. Retrieved 30 April 2008.
Ruiz, José Luis (3 April 2001). "Caen 21 miembros de cártel del Golfo". El Universal. Archived from the original on 28 March 2012.
Ramírez, Ignacio (10 April 2000). "La disputa del narcopoder". El Universal. Archived from the original on 28 March 2012.
"Desde las entrañas del Ejército, Los Zetas". Blog del Narco. 23 May 2010. Archived from the original on 25 December 2010.
""Los Zetas" se salen de control". El Universal. Archived from the original on 25 April 2012. Retrieved 1 December 2011.
"¿Quienes son los Zetas?". Blog del Narco. 7 March 2010. Archived from the original on 29 July 2011.
"Cártel de 'Los Zetas'". Mundo Narco. 15 January 2011. Archived from the original on 18 January 2011.
Tobar, Hector (20 May 2007). "A cartel army's war within". Los Angeles Times. Archived from the original on 16 December 2017. Retrieved 20 February 2020.
"Los Zetas and Mexico's Transnational Drug War". Borderland Beat. Archived from the original on 10 February 2020. Retrieved 9 December 2011.
"Los 'grandes capos' detenidos en la guerra contra el narcotráfico de Calderón". CNN México. 6 November 2010. Archived from the original on 13 March 2012.
"Video Interrogatorio de Jesús Enrique Rejón Aguilar "El Mamito"". Mundo Narco. 5 July 2011. Archived from the original on 9 July 2011.
"Heriberto Lazcano Lazcano "El Verdugo"". Blog del Narco. 3 March 2010. Archived from the original on 6 August 2011.
Ware, Michael (6 August 2009). "Los Zetas called Mexico's most dangerous drug cartel". CNN World. Archived from the original on 15 October 2011.
"Surge nuevo 'narcoperfil". El Universal. Archived from the original on 11 January 2012. Retrieved 9 December 2011.
"Organized crime and terrorist activity in Mexico, 1999–2002" (PDF). Library of Congress. Archived (PDF) from the original on 19 October 2012. Retrieved 9 December 2011.
Schiller, Dane. "Narco gangster reveals the underworld". Houston Chronicle. Archived from the original on 16 August 2011. Retrieved 17 April 2020.
"The Mexican Drug War and the Thirty Years' War". Bellum: The Stanford Review. Archived from the original on 5 March 2011. Retrieved 8 February 2011.
"Army troops capture a Zetas cartel boss in northern Mexico". Fox News Latino. 15 February 2011. Archived from the original on 28 March 2012. Retrieved 31 July 2011.
"¿Qué es el Cartel de Sinaloa?". Perfil.com. 24 August 2008. Archived from the original on 3 March 2016. Retrieved 31 July 2011.
Sánchez, Alex (4 June 2007). "Mexico's Drug War: Soldiers versus Narco-Soldiers". New American Media | La Prensa San Diego. Archived from the original on 20 March 2012.
Fantz, Ashley (22 January 2012). "Saldo por el combate al narcotráfico: muerte por un negocio millonario". CNN Mexico. Archived from the original on 23 January 2012. Retrieved 24 January 2012.
"Cartel boss: Everyone from cops to strippers worked for me". Archived from the original on 25 September 2012. Retrieved 25 September 2012.
"Drug Trafficking Organizations". National Drug Intelligence Center. Archived from the original on 27 November 2011. Retrieved 9 December 2011.
"Weekend shootouts in northeastern Mexico kill at least 9". CNN News. 17 June 2011. Archived from the original on 15 March 2012. Retrieved 9 December 2011.
"El origen de 'Los Zetas': brazo armado del cártel del Golfo". CNN México. 5 July 2011. Archived from the original on 28 January 2013.
Buch, Json (28 February 2011). "Dangers higher for federal agents". San Antonio Express-News. Archived from the original on 27 November 2018.
Schiller, Dane (15 March 2010). "DEA agent breaks silence on standoff with cartel". The Houston Chronicle. Archived from the original on 27 November 2018.
"$2 Million Reward Offered Leading to the Arrest or Conviction of Drug Traffickers". Drug Enforcement Administration. 14 December 2000. Archived from the original on 3 February 2007.
"'Drug boss' captured in Mexico". BBC News. 15 March 2003. Archived from the original on 11 June 2011. Retrieved 25 February 2010.
"Osiel Cardenas-Guillen". Federal Bureau of Investigation. Archived from the original on 15 August 2012. Retrieved 24 February 2010.
"Cae Osiel Cárdenas: Se enfrentó a tiros con el Ejército". El Universal. 15 March 2003. Archived from the original on 28 March 2012.
"Nuevo auto de formal prisión a Osiel Cárdenas". Esmas.com. Notimex. August 2005. Archived from the original on 4 October 2012.
Aponte, David (5 January 2005). "Líderes narcos pactan en La Palma trasriego de droga". El Universal. Archived from the original on 28 March 2012.
"Osiel Cardenas-Guillen, Former Head of the Gulf Cartel, Sentenced to 25 Years' Imprisonment". Federal Bureau of Investigation. 24 February 2010. Archived from the original on 4 January 2017.
"Sentencian a Osiel Cárdenas Guillén a 25 años de prisión en Texas". CNN México. 24 February 2010. Archived from the original on 4 September 2011.
"Maneja Osiel mafia desde la carcel, prueban". El Universal. Archived from the original on 19 April 2012. Retrieved 5 December 2011.
"Desertor del Ejército, nuevo líder del cártel del Golfo: informes castrenses". La Jornada. 3 February 2008. Archived from the original on 8 February 2012. Retrieved 6 August 2011.
"Detienen a un líder del Cártel del Golfo en Tabasco". Esmas.com. Notimex. 7 September 2008. Archived from the original on 23 January 2010. Retrieved 6 August 2011.
"Miguel Morales Treviño, Z-40, un narco violento ya está en la mira". Mundo Narco. 22 December 2010. Archived from the original on 23 December 2010.
"Loz Zetas: Grupo Paramilitar Mexicano" (PDF). Policias y Sociedad. Archived from the original (PDF) on 26 June 2011. Retrieved 6 August 2011.
"Cartel leader believed slain in Reynosa violence". The Monitor. 17 February 2009. Archived from the original on 20 May 2009.
"Confirman militares enfrentamiento con narcotraficantes". El Mañana: Reynosa. 27 November 2009. Archived from the original on 5 January 2002.
"Revelan que desertor del Ejército mexicano liderea Cártel del Golfo". El Porvenir. 3 February 2008. Archived from the original on 6 April 2012.
"Capturan al líder de los 'Zetas' en Tabasco". Tabasco Hoy. 8 September 2008. Archived from the original on 27 September 2011. Retrieved 6 August 2011.
"Mexico Gulf Cartel leader Mario Ramirez Trevino captured". BBC News. 18 August 2013. Archived from the original on 18 August 2013. Retrieved 20 June 2018.
"United States of America v. Cardenas-Guillen" (PDF). United States Court of Appeals for the Southern District of Texas. Archived (PDF) from the original on 3 March 2012. Retrieved 28 January 2012.
"DEA agent talks of 1999 Matamoros standoff with Osiel Cardenas-Guillen". The Brownsville Herald. 15 March 2010. Archived from the original on 23 March 2012. Retrieved 28 January 2012.
"Extradition: Past cases highlight limits". The Brownsville Herald. 5 March 2011. Archived from the original on 31 March 2019. Retrieved 28 January 2012.
Langford, Terri (9 November 2011). "New U.S. attorney no stranger to Houston". The Houston Chronicle. Archived from the original on 4 February 2015. Retrieved 28 January 2012.
Schiller, Dane (30 September 2011). "Mexican drug lords decry U.S. prison conditions". The Houston Chronicle. Archived from the original on 31 January 2012. Retrieved 28 January 2012.
"Assets from drug boss go to Texas law enforcement". The Houston Chronicle. 17 January 2012. Archived from the original on 5 March 2012. Retrieved 28 January 2012.
Schiller, Dane (4 August 2011). "Trafficking defendant: I was a DEA informer". The Houston Chronicle. Archived from the original on 16 February 2012. Retrieved 28 January 2012.
"U.S. turns over custody of Cardenas-Guillen helicopters to businesses". The Monitor. 29 March 2011. Archived from the original on 2 April 2011. Retrieved 28 January 2012.
Grimes, Dana M. (2010). "Law and Order in Mexico". GrimesandWarwick. Archived from the original on 11 January 2012.
"Mexico's Cartels Declare War on the Zetas". Geopolitical Monitor. 19 April 2010. Archived from the original on 29 March 2012.
"Gulf Cartel split with Zetas made public". Borderland Beat. 10 March 2010. Archived from the original on 11 September 2019. Retrieved 9 October 2011.
"Mexican cartels strategize to win hearts and minds". The Monitor. Archived from the original on 14 June 2012. Retrieved 6 December 2011.
"Otro Cárdenas Guillén hereda la organización". Vanguardia. 8 November 2010. Archived from the original on 2 April 2012. Retrieved 9 October 2011.
"War between Gulf Cartel, Zetas marks year anniversary". The Brownsville Herald: Valley Morning Star. 7 March 2011. Archived from the original on 5 October 2011. Retrieved 31 July 2011.
Longmire, Sylvia. "TCO 101: The Gulf Cartel". Mexico's drug war. Archived from the original on 25 October 2011. Retrieved 9 October 2011.
"Ejecución de "El Concorde" detonó guerra en Tamaulipas". El Universal. 7 March 2010. Archived from the original on 11 March 2010. Retrieved 9 October 2011.
"The Gulf-Zeta Split and the Praetorian Revolt". ISN. 7 April 2010. Archived from the original on 2 April 2012. Retrieved 9 October 2011.
"México: Los Zetas rompen con el Cartel del Golfo". BBC Mundo | Semana.com. 26 February 2010. Archived from the original on 24 September 2012. Retrieved 31 July 2011.
Hernández, Jaime (4 March 2010). "EU: alarma guerra "Zetas"-El Golfo". El Universal. Archived from the original on 8 October 2012. Retrieved 4 March 2010.
"El cártel de los Zetas tiende acuerdos de "no agresión y colaboración"". Infobae. 8 March 2011. Archived from the original on 30 May 2012. Retrieved 14 December 2011.
"Gulf Cartel lieutenant's associates enter plea agreement". The Monitor. 13 December 2011. Archived from the original on 14 June 2012. Retrieved 14 December 2011.
"Tiene nuevo lider del cartel del Golfo". El Universal. Archived from the original on 19 April 2012. Retrieved 1 December 2011.
"Los 'grandes capos' detenidos en la guerra contra el narcotráfico de Calderón". CNN Mexico. 6 November 2010. Archived from the original on 3 April 2013. Retrieved 1 December 2011.
"Ejército, Armada y PF van tras El Coss, segundo heredero del cártel del Golfo". La Jornada. Archived from the original on 15 September 2011. Retrieved 1 December 2011.
"Another Cardenas-Guillen inherits the organization". Borderland Beat. Archived from the original on 13 November 2011. Retrieved 6 December 2011.
"Se lanza la PGR por más líderes del cártel del Golfo". Organización Editorial Mexicana. Archived from the original on 22 June 2013. Retrieved 6 December 2011.
""El Coss", nuevo "amo" del grupo". El Universal. Archived from the original on 19 April 2012. Retrieved 7 December 2011.
"Tony Tormenta muere abatido". El Universal. Archived from the original on 9 November 2010. Retrieved 29 November 2011.
"Operativo contra Tony Tormenta dejó 8 muertos". El Universal. Archived from the original on 9 November 2010. Retrieved 29 November 2011.
G. García, Jacobo (11 July 2010). "Tres militares, 'Tony Tormenta' y un periodista". El Mundo. Archived from the original on 10 November 2010. Retrieved 1 August 2011.
"The life and death of Tony the Storm". The Independent. 7 November 2010. Archived from the original on 10 November 2010. Retrieved 29 November 2011.
"Cae "Tony Tormenta", lider del cartel del Golfo". ABC Internacional. Archived from the original on 9 November 2010. Retrieved 29 November 2011.
"In the aftermath, UTB-TSC works to protect students". The Brownsville Herald. Archived from the original on 5 April 2012. Retrieved 29 November 2011.
"Ocho horas de balaceras, en Matamoros". Esmas Noticias. Archived from the original on 14 November 2010. Retrieved 29 November 2011.
"Secretaría de Marina, detenciones en tierra". CNN Mexico. 23 November 2010. Archived from the original on 30 November 2011. Retrieved 29 November 2011.
"Detonaron más de 300 granadas en el operativo contra Tony Tormenta". La Jornada. 8 November 2010. Archived from the original on 11 October 2011. Retrieved 27 December 2011.
"Muere Tony Tormenta luego de ocho horas de tiroteos con efectivos federales en Matamoros". La Jornada. Archived from the original on 16 September 2011. Retrieved 29 November 2011.
Tuckman, Jo (7 November 2010). "Top Mexican drugs lord killed in fierce gunbattle with military". The Guardian. Archived from the original on 9 November 2010. Retrieved 9 December 2011.
"En una balacera, muere "Tony Tormenta"". EFE, Milenio, Reforma, La Jornada. 11 May 2010. Archived from the original on 26 March 2012.
"Dozens killed in Matamoros; Tony Tormenta dead". Borderland Beat. 5 November 2010. Archived from the original on 19 July 2011. Retrieved 1 August 2011.
"Head of Gulf Cartel killed". The Brownsville Herald. 5 November 2010. Archived from the original on 9 November 2010. Retrieved 6 December 2011.
"Dozens killed in Matamoros; bridges closed". The Brownsville Herald. Archived from the original on 7 November 2010. Retrieved 6 December 2011.
"Head of Gulf Cartel killed in Matamoros shootout". The Monitor. Archived from the original on 21 April 2012. Retrieved 6 December 2011.
"Shootings in Matamoros Kill "Tony Tormenta" and Nearly 100 People". KVEO News Center. 8 November 2010. Archived from the original on 21 March 2012. Retrieved 9 September 2011.
"Los Zetas tienen el plato servido tras muerte de 'Tony Tormenta': Expertos". El Nuevo Heraldo. Archived from the original on 24 April 2012. Retrieved 1 December 2011.
Johnston, Robert. "Data on Mexican drug war violence". Terrorism, Counterterrorism, and Unconventional Warfare. Archived from the original on 4 January 2012. Retrieved 29 November 2011.
"Carnage along border continues". The Brownsville Herald. Archived from the original on 11 November 2010. Retrieved 29 November 2011.
"Gulf Cartel leader killed, 55 others in Matamoros, Mexico". News Taco: The Latino Daily. Archived from the original on 2 May 2012. Retrieved 6 December 2011.
"Death toll mounts in Matamoros shootout as sporadic fighting continues". The Monitor. Archived from the original on 14 June 2012. Retrieved 6 December 2011.
Deibert, Michael (16 May 2011). "Cartel Wars". Truthdig, L.L.C. Archived from the original on 17 September 2016. Retrieved 6 December 2011.
"600 militares llegan a Mier, una ciudad abandonada por sus habitantes". CNN Mexico. 9 December 2011. Archived from the original on 5 September 2012. Retrieved 11 December 2011.
"Zozobra en Tamaulipas luego de caída del líder del cártel del Golfo". La Jornada. Archived from the original on 8 June 2011. Retrieved 29 November 2011.
"Zetas celebran caida de "Tony Tormenta" con narcomantas y narcopintas". La Policiaca. Archived from the original on 7 April 2012. Retrieved 29 November 2011.
"Barack Obama expresa su apoyo a Calderón por la muerte de 'Tony Tormenta'". CNN Mexico. 6 November 2010. Archived from the original on 6 September 2012. Retrieved 29 November 2011.
Cattan, Nacha (7 November 2010). "Killing of top Mexico drug lord 'Tony Tormenta' may boost rival Zetas cartel". CSMonitor. Archived from the original on 22 October 2012. Retrieved 1 August 2011.
Longmire, Sylvia. "Authorities Say Cartel Leader's Death Won't Curb Violence". Mexico's Drug War. Archived from the original on 24 November 2010. Retrieved 9 November 2010.
"Los Escorpiones, temible escolta de Tormenta". Vanguardia. Archived from the original on 12 November 2010. Retrieved 29 November 2011.
"Matamoros braces for more violence". The Monitor. Archived from the original on 5 April 2012. Retrieved 29 November 2011.
"Los Escorpiones, temible escolta de Tormenta". El Universal. 5 November 2010. Archived from the original on 9 November 2010. Retrieved 2 January 2012.
"Identifican a nuevo grupo armado del cártel del Golfo que protegía a Tony Tormenta". Vanguardia. Archived from the original on 30 October 2013. Retrieved 29 November 2011.
Gomez, Francisco (31 December 2008). ""Los Zetas" por dentro". El Universal. Archived from the original on 3 January 2009. Retrieved 2 January 2012.
"Tony Tormenta, el capo que 'cuidaba' las fronteras de Tamaulipas". CNN Mexico. 5 November 2010. Archived from the original on 3 March 2013. Retrieved 29 November 2011.
"New details released about Gulf Cartel leader's death". Action 4 News. Archived from the original on 6 April 2012. Retrieved 29 November 2011.
"Internal struggle in the Gulf Cartel could weaken the organization". The Monitor. 29 October 2011. Archived from the original on 16 August 2012. Retrieved 9 August 2012.
"Gulf Cartel lieutenant linked to various incidents on U.S side of border". The Monitor. 2 January 2012. Archived from the original on 18 August 2012. Retrieved 10 August 2012.
Ford, Jess T. (25 October 2007). "U.S. Assistance Has Helped Mexican Counternarcotics Efforts, but the Flow of Illicit Drugs into the United States Remains High" (PDF). Government Accountability Office: 27. Archived (PDF) from the original on 12 July 2011. Retrieved 12 August 2012.
"Testimony of Thomas A. Shannon" (PDF). United States Senate. Archived (PDF) from the original on 3 May 2012. Retrieved 3 January 2012.
"DTOs Have Expanded Operations in the United States". U.S. Government Accountability Office. Archived from the original on 17 January 2012. Retrieved 3 January 2012.
Buch, Jason (1 January 2012). "Cartels cooperate with prison gangs". The Houston Chronicle. Archived from the original on 8 January 2012. Retrieved 3 January 2012.
Morasch, Charlie (6 December 2011). "FBI: Trucking 'significant' in cartels' U.S. profitability". Landline. Archived from the original on 24 December 2012. Retrieved 3 January 2012.
"High Ranking Gulf Cartel Member Sentenced in Washington, D.C., to 35 Years in Prison for Drug Trafficking". 13 May 2013. Archived from the original on 30 June 2013. Retrieved 1 April 2020.
"Former Gulf Cartel Leader Convicted of International Drug Trafficking Conspiracy". 9 January 2020. Archived from the original on 10 March 2020. Retrieved 1 April 2020.
"Cartel Inc: In the company of Narcos". Reuters. 14 January 2010. Archived from the original on 16 May 2021. Retrieved 3 January 2012.
"Narco-mafia se comunican por Blackberry". CNN Expansion. 19 February 2009. Archived from the original on 26 December 2012. Retrieved 20 January 2012.
Carpenter, Ted Galen (15 November 2011). "Undermining Mexico's Dangerous Drug Cartels" (PDF). Policy Analysis. Archived (PDF) from the original on 15 December 2011. Retrieved 3 January 2012.
"Mexican Cartels Exploit North Africa Turmoil". Insight Crime. April 2011. Archived from the original on 4 April 2011. Retrieved 3 January 2012.
Brice, Arthur (21 September 2009). "Latin American drug cartels find home in West Africa". CNN. Archived from the original on 11 August 2011. Retrieved 3 January 2012.
"Cocaine trafficking in Western Africa" (PDF). United Nations: Office on Drugs and Crime. Archived (PDF) from the original on 24 November 2007. Retrieved 3 January 2012.
"Gulf Cartel vs. Los Zetas... One year later". Borderland Beat. 26 February 2011. Archived from the original on 28 January 2012. Retrieved 28 January 2012.
Penhaul, Kent (21 June 2010). "La ley del silencio en Reynosa sólo la rompe... Twitter". CNN Mexico. Archived from the original on 29 January 2012. Retrieved 28 January 2012.
"La guerra Golfo-zetas, en 11 municipios tamaulipecos; nueve son fronterizos con EU". La Jornada. 12 November 2010. Archived from the original on 22 October 2012. Retrieved 28 January 2012.
"Los Zetas y el cártel del Golfo se pelean por Monterrey". Univision. Archived from the original on 24 December 2011. Retrieved 28 January 2012.
"La batalla del cártel del Golfo y "Los Zetas" por la Huasteca". Proceso. 31 December 2011. Archived from the original on 31 January 2012. Retrieved 28 January 2012.
"Two Zetas executed in Brownsville, Texas". Borderland Beat. 25 October 2010. Archived from the original on 11 February 2012. Retrieved 28 January 2012.
"La guerra del cártel del Golfo y Los Zetas, mañana 24 de febrero se cumple un año". Mundo Narco. 23 February 2011. Archived from the original on 16 December 2013. Retrieved 28 January 2012.
"Enfrentamientos entre el cártel del Golfo y Los Zetas paralizaron Nuevo Laredo". La Jornada. 20 May 2011. Archived from the original on 17 November 2015. Retrieved 28 January 2012.
"The Missing in Tamaulipas". Borderland Beat. 26 April 2010. Archived from the original on 28 January 2012. Retrieved 28 January 2012.
"All Tamaulipas, a War Zone". Borderland Beat. 22 April 2010. Archived from the original on 28 January 2012. Retrieved 28 January 2012.
"DEA: acuerdan 3 cárteles alianza contra Los Zetas". Milenio. 5 March 2010. Archived from the original on 14 January 2012. Retrieved 28 January 2012.
"Facciones del Cártel del Golfo y Los Zetas buscan aliarse para poner fin a agresiones contra la población" (in Spanish). Proceso. 11 November 2014. Archived from the original on 11 November 2014. Retrieved 11 November 2014.
"Why the Jalisco Cartel Does Not Dominate Mexico's Criminal Landscape". 11 June 2020. Archived from the original on 14 June 2020. Retrieved 14 June 2020.
Nájar, Alberto (13 April 2011). "Tamaulipas, ¿en camino de convertirse en un estado fallido?". BBC Mundo. Archived from the original on 16 April 2011. Retrieved 28 December 2011.
"Migrantes, 72 muertos de fosa en Tamaulipas". El Universal. 25 August 2010. Archived from the original on 12 October 2012. Retrieved 28 December 2011.
Sánchez López, Daniel (9 April 2011). "Sin resolver origen de narcofosas en Tamaulipas". Sexenio. Archived from the original on 28 July 2012. Retrieved 28 December 2011.
"Asesinan a Rodolfo Torre Cantú, candidato al gobierno de Tamaulipas". Milenio Noticias. 28 June 2011. Archived from the original on 13 October 2012. Retrieved 28 December 2011.
Miglierini, Julian (13 April 2011). "Tamaulipas: 'Failed state' in Mexico's war on drugs". BBC News, Mexico City. Archived from the original on 1 January 2012. Retrieved 28 December 2011.
Longmire, Sylvia. "Mexico's PRI Names Presidential Candidate". Mexico's Drug War. Archived from the original on 27 January 2012. Retrieved 28 December 2011.
Andreas, Peter (April 1998). The Political Economy of Narco-Corruption in Mexico (PDF). Brown University. Archived (PDF) from the original on 19 January 2012. Retrieved 28 December 2011.
"Mexico's drug war: A pax narcotica?". The Economist. 7 January 2011. Archived from the original on 26 November 2011. Retrieved 28 December 2011.
Klepak, Hal (August 2010). "Mexico: Current and Future Political, Economic and Security Trends" (PDF). Canadian Defence & Foreign Affairs Institute. Archived from the original (PDF) on 26 April 2012.
"Hay pruebas sobre nexos de priistas con narco: PAN". El Universal. 21 October 2004. Archived from the original on 19 April 2012. Retrieved 28 December 2011.
"Narcopolítica en Tamaulipas". El Universal. 29 June 2010. Archived from the original on 5 February 2012. Retrieved 28 December 2011.
Alemán, Ricardo (12 January 2010). "Tamaulipas; PRI y narco". El Universal. Archived from the original on 25 June 2013. Retrieved 28 December 2011.
Moreno, Martín (10 April 2011). "Tamaulipas: gobierno fallido". Excélsior. Archived from the original on 11 June 2012. Retrieved 28 December 2011.
"Busca PGR contra 3 ex gobernadores de Tamaulipas". El Siglo de Torreón. 30 January 2012. Archived from the original on 21 June 2013. Retrieved 31 January 2012.
"PGR emitió alerta migratoria contra tres ex gobernadores de Tamaulipas". Univision. 30 January 2012. Archived from the original on 22 June 2013. Retrieved 31 January 2012.
"El cártel del Golfo, junto con sus nuevos socios, es dueño de todo en Matamoros". La Jornada. 8 May 2011. Archived from the original on 16 September 2011. Retrieved 28 December 2011.
"Ciudadana graba evidencias de balaceras en Tamaulipas". El Universal. 2 March 2010. Archived from the original on 10 October 2012. Retrieved 4 January 2012.
"La violencia nos rebasó, acepta Eugenio Hernández". Milenio. 28 August 2010. Archived from the original on 31 August 2010. Retrieved 4 January 2012.
"Alcalde admite psicosis por violencia en Reynosa". El Universal. 25 February 2010. Archived from the original on 25 June 2013. Retrieved 4 January 2012.
"García Cabeza de Vaca gana a priísta Hinojosa". 6 June 2016. Archived from the original on 14 August 2016. Retrieved 11 December 2016.
"Programa de Resultados Electorales Preliminares Tamaulipas 2016". www.preptam.org. Archived from the original on 3 July 2016.
"Tamaulipas: Rastros de narco en el precandidato panista – Proceso". 16 December 2009. Archived from the original on 16 August 2016. Retrieved 11 December 2016.
"Como funcionario, Cabeza de Vaca amasa fortuna de 951 mdp". June 2016. Archived from the original on 19 August 2016. Retrieved 11 December 2016.
"Tamaulipas: gobernadores y narco, hermanados – Proceso". 28 May 2016. Archived from the original on 29 October 2016. Retrieved 11 December 2016.
"Departamento del Tesoro investiga a candidato del PRI al gobierno de Tamaulipas por lavado – Proceso". 1 June 2016. Archived from the original on 17 November 2016. Retrieved 11 December 2016.
"Se fugan 40 reos de penal en Matamoros". El Universal. 25 March 2010. Archived from the original on 22 September 2012. Retrieved 2 January 2012.
"Se fugan 40 reos de Penal de Matamoros". El Economista. 25 March 2010. Archived from the original on 27 March 2010. Retrieved 2 January 2012.
"40 reos se fugan de penal de Matamoros". CNN Mexico. 25 March 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"85 reos escaparon del penal de Reynosa, precisa el gobierno". CNN México. 10 September 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Al menos 71 reos se fugan de un penal de Reynosa, en Tamaulipas". CNN México. 10 September 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Un comando libera a trece prisioneros de un penal de Reynosa". CNN Mexico. 5 April 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Al menos 148 presos se escapan de una cárcel de Tamaulipas". CNNMéxico. 17 December 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Tamaulipas cesa a directivos de penal por la fuga de los 141 reos". CNN México. 17 December 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Al menos siete muertos y 59 reos fugados en una cárcel de Nuevo Laredo". CNN México. 15 July 2011. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Se fugan 59 reos en Nuevo Laredo". El Universal. 16 July 2011. Archived from the original on 3 September 2011. Retrieved 2 January 2012.
"Se fugan 59 reos en Nuevo Laredo tras enfrentamiento". Terra Noticias. 15 July 2011. Archived from the original on 26 April 2012. Retrieved 2 January 2012.
"Tras las fugas de reos en Tamaulipas, el gobierno federal se defiende". CNN Mexico. 7 April 2010. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Narco libera reos en Zacatecas". CNN Expansion. 16 May 2009. Archived from the original on 23 September 2012. Retrieved 20 January 2012.
"Más de 400 reos se fugaron de cárceles de Tamaulipas en 14 meses". CNN México (in Spanish). 15 July 2011. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"Policías de Tamaulipas ganan 3 mil 618 pesos". Excelsior (in Spanish). 25 September 2011. Archived from the original on 12 October 2011. Retrieved 2 January 2012.
"Policías de Tamaulipas, los peores pagados de México; ganan menos de 4 mil pesos al mes". Animal Politico (in Spanish). 26 September 2011. Archived from the original on 1 February 2012. Retrieved 2 January 2012.
"Policías de Tamaulipas aun no son confiables: Lomelí". Hoy Tamaulipas (in Spanish). 7 November 2011. Archived from the original on 2 May 2012. Retrieved 2 January 2012.
"El gobierno de México desplegará 2,790 militares en Tamaulipas". CNN Mexico (in Spanish). 24 June 2011. Archived from the original on 1 January 2012. Retrieved 2 January 2012.
"México enviará más Fuerzas Armadas a Nuevo León y Tamaulipas". CNN Mexico (in Spanish). 24 November 2011. Archived from the original on 2 January 2012. Retrieved 2 January 2012.
Castillo, Mariano (26 June 2011). "Tropas mexicanas reemplazan a los policías en la mitad de Tamaulipas". CNN Mexico (in Spanish). Archived from the original on 22 February 2012. Retrieved 2 January 2012.
"Expulsan a mil 650 policías de Tamaulipas por pérdida de confianza". Excelsior (in Spanish). 7 November 2011. Archived from the original on 11 June 2012. Retrieved 2 January 2012.
"Acusan a estados de incumplir homologación salarial policiaca". El Universal (in Spanish). 26 September 2011. Archived from the original on 25 June 2013. Retrieved 2 January 2012.
"Batallones son parte de la estrategia de seguridad". El Diario de Ciudad Victoria (in Spanish). 16 November 2011. Archived from the original on 14 May 2012. Retrieved 2 January 2012.
Ensinger, Jason. "Mexico's War on Drugs". Shave Magazine. Archived from the original on 7 October 2011. Retrieved 2 August 2011.
Logan, Sam (2006). The Reality of the Mexican Mega Cartel (PDF). p. 21. Archived (PDF) from the original on 5 October 2011. Retrieved 2 August 2011.
"Rompen pacto cárteles de Juárez y de Sinaloa". El Universal (in Spanish). 10 May 2008. Archived from the original on 12 October 2012. Retrieved 2 August 2011.
Granados, Omar (6 May 2011). ""El Chapo" y Los Zetas dominan reacomodo de cárteles". Animal Político (in Spanish). Archived from the original on 6 August 2011. Retrieved 2 August 2011.
Vega, Aurora (7 August 2011). "Surgen cuatro grupos del narco en 2011; El Chapo es el capo más poderoso". Excelsior (in Spanish). Archived from the original on 19 March 2012. Retrieved 7 August 2011.
Mosso, Rubén (1 August 2011). "Presentan a "El Yupo" líder de "Los Caballeros Templarios" en Apatzingán". Milenio Noticias (in Spanish). Archived from the original on 5 August 2011. Retrieved 2 August 2011.
"Cae abatido por la Marina 'Tony Tormenta' en Matamoros". Milenio Noticias. 5 November 2010. Archived from the original on 15 October 2012. Retrieved 6 August 2011.
Wilkinson, Tracy (13 September 2012). "Latest Mexico drug arrest may cripple Gulf cartel". Los Angeles Times. Archived from the original on 11 October 2012. Retrieved 12 October 2012.
Vega, Aurora (6 November 2010). "Otro Cárdenas Guillén hereda la organización". Excelsior. Archived from the original on 19 March 2012. Retrieved 6 August 2011.
"Sources: Fatal gunshots on McAllen expressway point to Gulf Cartel". The Monitor. 27 September 2011. Archived from the original on 11 August 2012.
"Va Marina por 'halcones' del crimen organizado". Blog del Narco. 21 April 2011. Archived from the original on 27 August 2011.
"Ejército detiene a lugarteniente del cártel del Golfo". El Universal. 2 June 2009. Archived from the original on 12 October 2012. Retrieved 6 August 2011.
"Uncovering the link between the Mexican drug cartels" (PDF). National Defense University: Center for Hemispheric Defense Studies. Archived from the original (PDF) on 15 June 2011.
"Las 5 caras del lavado de dinero". CNNExpansión (in Spanish). 8 June 2010. Archived from the original on 3 March 2016. Retrieved 6 August 2011.
"Police arrest man believed to be Gulf Cartel's Oaxaca plaza chief". 20 June 2019. Archived from the original on 12 July 2019. Retrieved 12 July 2019.
"Crimen cobra cuotas a vecinos: Elizondo". Milenio (in Spanish). 15 April 2009. Archived from the original on 21 December 2009. Retrieved 24 January 2012.
Gomora, Doris (25 December 2011). "Cárteles "cobran piso" en EU: DEA". El Universal (in Spanish). Archived from the original on 25 June 2013. Retrieved 24 January 2012.
"Detenidas con Calderón, 223 bandas de secuestradores". Milenio. 31 December 2011. Archived from the original on 14 January 2012. Retrieved 21 January 2012.
"Presentan a banda de secuestradores en Tamaulipas". Milenio. 9 December 2011. Archived from the original on 8 January 2012. Retrieved 21 January 2012.
"Van mil 700 desaparecidos en Nuevo León y Tamaulipas, según reportes a militares". La Vanguardia. 4 October 2010. Archived from the original on 5 April 2012. Retrieved 21 January 2012.
"Rescatan a 51 inmigrantes secuestrados cerca de frontera". El Siglo de Torreón. April 2011. Archived from the original on 21 June 2013. Retrieved 21 January 2012.
"Mexican soccer star arrested for working in kidnapping ring that took pop singer's husband". Borderland Beat. 8 January 2012. Archived from the original on 19 January 2012. Retrieved 21 January 2012.
"El luchador mexicano 'Estrella Dorada' es acusado de secuestro". Univision. 10 January 2012. Archived from the original on 30 January 2012. Retrieved 21 January 2012.
Lopez, Katie (18 November 2011). "San Juan kidnapping ring suspects face judge". Action 4 News. Archived from the original on 4 January 2014. Retrieved 21 January 2012.
"Gulf Cartel lieutenant linked to various incidents in the U.S side". The Brownsville Herald. 2 January 2012. Archived from the original on 13 January 2012. Retrieved 21 January 2012.
Caranza, Rafael (4 November 2011). "Alleged Gulf Cartel members charged with Hidalgo kidnapping". Valley Central. Archived from the original on 4 January 2014. Retrieved 21 January 2012.
"San Juan kidnapping ring reportedly had Gulf Cartel ties". Action 4 News. 17 November 2011. Archived from the original on 4 January 2014. Retrieved 21 January 2012.
Ortiz, Ildelfonso (4 November 2011). "Gulf Cartel members charged in Hidalgo kidnapping". The Monitor. Archived from the original on 1 January 2012. Retrieved 21 January 2012.
Dodge, Angela. "JURY CONVICTS CARTEL ASSOCIATE OF CONSPIRACY TO KIDNAP AND KIDNAPPING". Department of Justice. Archived from the original on 4 January 2014. Retrieved 21 January 2012.
"EJERCITÓ PGR ACCIÓN PENAL CONTRA DOS PERSONAS, POR DELINCUENCIA ORGANIZADA Y SECUESTRO". Procuraduria General de la Republica (in Spanish). 14 November 2011. Archived from the original on 4 January 2014. Retrieved 21 January 2012.
Carvallo Guzmán, Indira (14 November 2011). "En Veracruz, PGR captura a tres personas por el tráfico de personas en el sur". Diario Presencia (in Spanish). Archived from the original on 4 August 2023. Retrieved 21 January 2012.
Kimery, Anthony (6 December 2011). "Drug, Human Smuggling, Cartel Shootouts With Police Escalate in Rio Grande Valley". Homeland Security Today. Archived from the original on 22 January 2012. Retrieved 21 January 2012.
"El cártel del Golfo soborna a periodistas para que no cubran los sucesos violentos". Globedia. 3 December 2010. Archived from the original on 4 January 2014. Retrieved 22 January 2012.
"Comprar un policía cuesta $3,500 en NL". Milenio. 3 June 2009. Archived from the original on 9 April 2011. Retrieved 22 January 2012.
"Zetas desalojaron campo de Pemex en Tamaulipas". Milenio. February 2010. Archived from the original on 10 August 2010. Retrieved 22 January 2012.
"Desarticula PGR red de lavado de dinero del Cártel del Golfo". La Cronica (in Spanish). 3 March 2011. Archived from the original on 25 June 2013. Retrieved 21 January 2012.
"One river, one country". The Economist. 1997. Archived from the original on 22 February 2013. Retrieved 22 January 2012.
"Caen líderes del Cártel del Golfo". El Diario de Coahuila. 6 March 2011. Archived from the original on 12 July 2011. Retrieved 22 January 2012.
De la Luz Gonzalez, Maria (22 December 2008). "Operación 'hormiga', en el tráfico de armas". El Universal. Archived from the original on 25 June 2013. Retrieved 22 January 2012.
"Armamento de 'Los Zetas' se compra en EU, dice fundador del grupo criminal". CNN Mexico. 5 July 2011. Archived from the original on 28 September 2012. Retrieved 22 January 2012.
"El narco lava dinero con piratería". CNN Expansion. 16 July 2010. Archived from the original on 21 July 2010. Retrieved 22 January 2012.
"Militares piratas en México". La Vanguardia. 23 July 2010. Archived from the original on 28 July 2010. Retrieved 21 January 2012.
"Texas Gang Threat Assessment 2010" (PDF). Texas Department of Public Safety. Archived from the original (PDF) on 26 April 2012. Retrieved 8 December 2011.
"An Overview of Federal Drug Control Programs on the Southwest Border". Office of National Drug Control Policy. Archived from the original on 28 August 2008. Retrieved 8 December 2011.
"Self-Propelled Semi-Submersible (SPSS) – Fact Sheet" (PDF). Joint Interagency Task Force South. 2008. Archived from the original (PDF) on 17 November 2020. Retrieved 19 February 2010. {{cite journal}}: Cite journal requires |journal= (help)
"Alleged Mexican Cartel Leaders, Associates Targeted in Newest Effort to Combat Drug Trafficking Organizations". Drug Enforcement Administration. 20 July 2009. Archived from the original on 14 January 2012. Retrieved 14 December 2011.

youtube.com

"Muere Antonio Cardenas Guillen, alias "Tony Tormenta," lider del cartel del Golfo". Televisa. Retrieved 9 December 2011.^{[dead YouTube link]}
"Video inédito del la muerte de Cardenas Guillen, "Tony Tormenta"". YouTube. 6 November 2010. Archived from the original on 21 December 2021. Retrieved 9 December 2011.
"Mexico Border War – Live Battle! Unbelievable!". YouTube. Retrieved 9 December 2011.^{[dead YouTube link]}
"Balacera Matamoros: Convoy de Marinos". YouTube. 5 November 2010. Archived from the original on 21 December 2021. Retrieved 9 December 2011.
"Narcobloqueos y Balaceras en Tamaulipas tras muerte de 'Tony Tormenta'". Milenio TV. Retrieved 29 November 2011.^{[dead YouTube link]}
"Sedena desarma a policías de Tamaulipas". TV Milenio. 9 May 2011.^{[dead YouTube link]}
Bowden, Charles (6 February 2011). "El sicario, un documental proscrito en México (1)".^{[dead YouTube link]}
Bowden, Charles (6 February 2011). "El sicario, un documental proscrito en México (2)". Archived from the original on 21 December 2021.
"Cae "El Adal" operador financiero de los Zetas". TV Milenio (in Spanish). Retrieved 3 August 2011.^{[dead YouTube link]}
"Cae "El Míchel" operador financiero de Los Zetas en Aguascalientes". Tele Diario (in Spanish). Retrieved 3 August 2011.^{[dead YouTube link]}
"Entrevista a el Mamito, presunto fundador de los Zetas". CNN Videos (in Spanish). 6 July 2011. Archived from the original on 21 December 2021.
"Rescatan a 68 inmigrantes secuestrados por el Cártel del Golfo en Reynosa, Tamaulipas". Milenio TV. 10 April 2011. Retrieved 21 January 2012.^{[dead YouTube link]}