Sinodikŭt na t︠s︡ar Boril kato muzikalno-istoricheski pametnik
Published: 1961
Place of publication: Sofia
Language: bul
Number of pages: 77
Notes: Reprinted from: Izvestii︠a︡ na Instituta za muzika, Bŭlgarska Akademii︠a︡ na naukite, kn. 7 (1960).

Title in French: Le Synodique du tsar Boril ...