Kondratovich, I. V.
Kruchinina, A. N, Kravchenko, S. P.
Opyt sravneniia vizantiiskikh i drevnerusskikh pevcheskikh pamiatnikov XII v.
An Essay in Comparing Byzantine and old Russian Chant Monuments of the 12th c.
Problemy deshifrovki drevnerusskikh notatsii
Problems in deciphering old Russian notation
Article in collection
Russian
1987
Leningrad: 1987
3291