Transport in Bulgaria (English Wikipedia)

"Railway passenger transport statistics" (PDF). Europa EU. December 8, 2019. Archived (PDF) from the original on October 9, 2022. Retrieved January 9, 2021.

flipfloppeople.com (Global: low place; English: low place)

"Buses and Coaches in Bulgaria". Flip Flop People's. Retrieved May 2, 2016.

gateway.bg (Global: low place; English: low place)

caa.gateway.bg

"Statistics". Civil Aviation Administration. Retrieved May 2, 2016.

ghostarchive.org (Global: 64^th place; English: 28^th place)

"Railway passenger transport statistics" (PDF). Europa EU. December 8, 2019. Archived (PDF) from the original on October 9, 2022. Retrieved January 9, 2021.

lonelyplanet.com (Global: 2,169^th place; English: 1,718^th place)

"Bulgaria: Bus". Lonely Planet. Retrieved May 2, 2016.
"Bulgaria: Local Transport". Lonely Planet. Retrieved May 2, 2016.

marad.bg (Global: low place; English: low place)

"Регистър пристанища" (in Bulgarian). Изпълнителна агенция "Морска Администрация". Retrieved May 2, 2016.
"Регистър пристанища" (in Bulgarian). Изпълнителна агенция "Морска Администрация". Retrieved May 2, 2016.

metropolitan.bg (Global: low place; English: low place)

"Operating Metro". Retrieved October 24, 2021.

namrb.org (Global: low place; English: low place)

"State of the Municipal Roads and the Street Network". National Association of the Municipalities in the Republic of Bulgaria. Retrieved May 29, 2024.

navbul.com (Global: low place; English: low place)

"All vessels". Navbul.com. Retrieved October 16, 2017.

novinite.com (Global: 4,605^th place; English: 3,679^th place)

Sofia Airport Serviced Record Number of Passengers April 2011, Sofia News Agency, May 16, 2011
"EC President, Bulgarian PM Launch 2nd Sofia Metro Line". Novinite. August 31, 2012. Retrieved May 3, 2016.

nsi.bg (Global: 848^th place; English: 3,697^th place)

"National Road Network by Road Category". National Statistical Institute. Retrieved May 29, 2024.
"Length of Railway Network". National Statistical Institute. Retrieved May 29, 2024.
"Air transport". National Statistical Institute. July 31, 2015. Retrieved April 29, 2016.
"Length of railway network". NSI. Retrieved May 2, 2016.
"Goods carried and transport performance – National statistical institute". Nsi.bg. Retrieved October 16, 2017.
"National road network by road category". National Statistical Institute. Retrieved April 29, 2016.
"National road network by type of pavement". National Statistical Institute. Retrieved April 29, 2016.

railwaygazette.com (Global: 1,769^th place; English: 1,109^th place)

"Bulgaria to Turkey wiring underway". Railway Gazette International. Retrieved May 11, 2012.

seenews.com (Global: low place; English: low place)

wire.seenews.com

"Construction of Sofia subway third line to begin on Jan 20". SEE News. Retrieved April 13, 2016.

snews.bg (Global: low place; English: low place)

"Влакът Пловдив-Бургас ще лети с 200 км/ч" (in Bulgarian). Snews.bg. Retrieved May 11, 2012.

sofiaecho.com (Global: low place; English: low place)

Passenger traffic at Bulgaria's major airports grows 10% Y/Y in H1 2011, The Sofia Echo, August 18, 2011

standartnews.com (Global: low place; English: low place)

paper.standartnews.com

"Божков строи жп "Марица"". Standart (in Bulgarian). Retrieved May 11, 2012.

statista.com (Global: 1,214^th place; English: 1,277^th place)

"Percentage of the Railway Lines in Use in Europe in 2021 which were Electrified, by Country". Statista. Retrieved May 29, 2024.

web.archive.org (Global: 1^st place; English: 1^st place)

"Bulgaria". CIA World Factbook. Archived from the original on January 9, 2021. Retrieved May 29, 2024.
"Bulgaria". The World Factbook (2016 ed.). Central Intelligence Agency. Retrieved May 2, 2016.

Transport in Bulgaria (English Wikipedia)

bbc.com (Global: 26th place; English: 23rd place)

cia.gov (Global: 133rd place; English: 275th place)

dariknews.bg (Global: 7,252nd place; English: low place)

europa.eu (Global: 62nd place; English: 100th place)

ec.europa.eu

flipfloppeople.com (Global: low place; English: low place)

gateway.bg (Global: low place; English: low place)

caa.gateway.bg

ghostarchive.org (Global: 64th place; English: 28th place)

lonelyplanet.com (Global: 2,169th place; English: 1,718th place)

marad.bg (Global: low place; English: low place)

metropolitan.bg (Global: low place; English: low place)

namrb.org (Global: low place; English: low place)

navbul.com (Global: low place; English: low place)

novinite.com (Global: 4,605th place; English: 3,679th place)

nsi.bg (Global: 848th place; English: 3,697th place)

railwaygazette.com (Global: 1,769th place; English: 1,109th place)

seenews.com (Global: low place; English: low place)

wire.seenews.com

snews.bg (Global: low place; English: low place)

sofiaecho.com (Global: low place; English: low place)

standartnews.com (Global: low place; English: low place)

paper.standartnews.com

statista.com (Global: 1,214th place; English: 1,277th place)

web.archive.org (Global: 1st place; English: 1st place)

bbc.com (Global: 26^th place; English: 23^rd place)

cia.gov (Global: 133^rd place; English: 275^th place)

dariknews.bg (Global: 7,252^nd place; English: low place)

europa.eu (Global: 62^nd place; English: 100^th place)

ghostarchive.org (Global: 64^th place; English: 28^th place)

lonelyplanet.com (Global: 2,169^th place; English: 1,718^th place)

novinite.com (Global: 4,605^th place; English: 3,679^th place)

nsi.bg (Global: 848^th place; English: 3,697^th place)

railwaygazette.com (Global: 1,769^th place; English: 1,109^th place)

statista.com (Global: 1,214^th place; English: 1,277^th place)

web.archive.org (Global: 1^st place; English: 1^st place)