Title: Anonimŭt na Khaze : Bŭlgarii︠a︡ i Vizantii︠a︡ na dolni Dunav v krai︠a︡ na X vek /
Authors: Bozhilov, Ivan; Bŭlgarska akademii︠a︡ na naukite; Bibliothèque nationale (France).
Publisher: Izd-vo na Bŭlgarskata akademii︠a︡ na naukite,
Year: 1979
Subjects: Bulgaria History; Byzantine Empire History.