(NnASOKI W RAZWOQ NA FONOLOGI^NITE SISTEMI NA SLAWQNSKITE EZICI (B/s - (NlEKOW(B, (NiWANs ((NsOFIQ (B:s (Nb_LGARSKA aKADEMIQ NA nAUKITE(B,s, 1960)
Summaries in Russian and German.
Bibliographical footnotes.
Keywords: Slavic languages -- Phonology