Columbia subject headings:
Harvard subject headings:
Bulgarian language--Accents and accentuation.
Proto-Slavic language--Accents and accentuation--Research.
Russian language--Accents and accentuation
Slavic languages--Accents and accentuation--Research.
Slovak language--Accents and accentuation.
Princeton subject headings:
Bulgarian language.
Bulgarian philology.
Russian language.
Russian philology.
Slavic languages.
Slavic philology.
Slovak language.
Slovak philology.
Values in literature.