Title: Izvori za srednovekovnata istorii︠a︡ na Bŭlgarii︠a︡ (VII-XV v.) v avstriĭskite rŭkopisni sbirki i arkhivi
Subjects: History, Medieval Civilization, Archival resources
Places: Byzantine Empire, Austria, Bulgaria
Time periods: 1081-1453, 527-1081, To 1393