Bŭlgarsite pesnopenii︠a︡ vŭv vizantiĭskite muzikalni rŭkopisi
Language: rus
Notes: Extracted from: Bŭlgarska akademii︠a︡ na naukite. Izvestii︠a︡ na Instituta za muzikoznanĭe. Tom 18 (1974), p. 197-208.

Summaries in English and Russian.

Author's autograph presentation copy.