Leonardo Gatto (English Wikipedia)

"Elenco esiti comproprietà" (in Italian). Atalanta BC. 20 June 2013. Retrieved 31 July 2015.
"Mercato Atalanta, Leonardo Gatto in prestito al Vicenza" (in Italian). Atalanta BC. 10 July 2015. Archived from the original on 2 August 2015. Retrieved 31 July 2015.

corrieredellosport.it

"Calciomercato Ascoli, ufficiale Gatto dall'Atalanta". Corriere dello Sport (in Italian). Ascoli Piceno. 22 July 2016. Retrieved 22 August 2017.

"Rinforzo in attacco: dalla Salernitana arriva Gatto" (Press release) (in Italian). Virtus Entella. 10 January 2018. Retrieved 15 January 2018.
"Gatto alla Pro Vercelli a titolo temporaneo" (in Italian). Virtus Entella. 24 August 2018. Retrieved 1 September 2018.

"Berretti: l'FC Südtirol perde in trasferta contro l'Atalanta 3:0" (in Italian). FC Südtirol. 13 March 2010. Retrieved 27 November 2012.

"Comunicato Ufficiale N°28 (2008–09)" (PDF) (in Italian). FIGC Settore Giovanile e Scolastico. 24 February 2009. Retrieved 27 November 2012.

"ITALIA LEGA PRO-CROAZIA 4-2" (in Italian). Lega Pro. 10 October 2012. Archived from the original on 24 October 2013. Retrieved 27 November 2012.
"CROAZIA-ITALIA LEGA PRO 3-1" (in Italian). Lega Pro. 7 February 2013. Archived from the original on 9 February 2013. Retrieved 7 September 2015.
"IN CAMPO ITALIA LEGA PRO - RUSSIA: LE FORMAZIONI" (in Italian). Lega Pro. 14 November 2012. Retrieved 27 November 2012.
"OMAN-ITALIA LEGA PRO 1-2" (in Italian). Lega Pro. 29 November 2012. Archived from the original on 24 October 2013. Retrieved 7 September 2015.
"ITALIA LEGA PRO-FIORENTINA PRIMAVERA 3-2" (in Italian). Lega Pro. 7 November 2012. Retrieved 27 November 2012.

Atalanta B.C. SpA bilancio (financial report and accounts) on 31 December 2011 (in Italian), PDF purchased from Italian C.C.I.A.A.
Atalanta B.C. SpA bilancio (financial report and accounts) on 31 December 2013 (in Italian), PDF purchased from Italian C.C.I.A.A.

Товарищеские матчи, Кубок вызова [Friendlies, Challenge Cup] (in Russian). Russian Football Union. 14 November 2012. Retrieved 27 November 2012.

"Leonardo Gatto è un giocatore della Salernitana" (in Italian). US Salernitana 1919. 1 February 2016. Retrieved 27 March 2016.
"Asmah, Gatto e Radunovic sono giocatori della Salernitana" (Press release) (in Italian). Salerno: US Salernitana 1919. 16 August 2017. Retrieved 22 August 2017.

"Leonardo Gatto in biancorosso" (in Italian). Vicenza. 10 July 2015. Archived from the original on 11 July 2015. Retrieved 31 July 2015.

"Leonardo Gatto in biancorosso" (in Italian). Vicenza. 10 July 2015. Archived from the original on 11 July 2015. Retrieved 31 July 2015.
"Mercato Atalanta, Leonardo Gatto in prestito al Vicenza" (in Italian). Atalanta BC. 10 July 2015. Archived from the original on 2 August 2015. Retrieved 31 July 2015.
"ITALIA LEGA PRO-CROAZIA 4-2" (in Italian). Lega Pro. 10 October 2012. Archived from the original on 24 October 2013. Retrieved 27 November 2012.
"CROAZIA-ITALIA LEGA PRO 3-1" (in Italian). Lega Pro. 7 February 2013. Archived from the original on 9 February 2013. Retrieved 7 September 2015.
"OMAN-ITALIA LEGA PRO 1-2" (in Italian). Lega Pro. 29 November 2012. Archived from the original on 24 October 2013. Retrieved 7 September 2015.