Vokalnata sistema v razvoi͡a︡ na slavi͡a︡nskite ezitsi.
Publisher: Bŭlgarska akademii͡a︡ na naukite
Published: 1964
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 127
Subjects: Proto-Slavic language -- Phonology.; Slavic languages -- Phonology.
Notes: In Cyrillic characters.
At head of title: Bŭlgarska akademii͡a︡ na naukite.  Institut za bŭlgarski ezik.  Vladimir Georgiev.