Tringli, István (1997). «Knight kings: the Anjou and Sigismund age in Hungary: Neighbouring countries and provinces». Encyclopaedia Humana Hungarica 03. Consultado el 14 de noviembre de 2008. «The part which was closer to Hungary belonged to the Bulgarian tsar of Vidin (Bodony). Louis the Great occupied this state in 1365, and till 1369 it was directed by a Hungarian governor, under the title of the ban of Bulgaria.»
Rácz, György (1997). «Knight kings: the Anjou and Sigismund age in Hungary: Church and society». Encyclopaedia Humana Hungarica 03. Consultado el 14 de noviembre de 2008. «The oldest Hungarian missionary bishopric was founded by Louis I in 1365 in Bodony (Vidin, Bulgaria), which had a very short life...»
