Columbia subject headings:
Slavic languages, Eastern--Accents and accentuation.
Slavic languages, Eastern--Noun.
Harvard subject headings:
Slavic languages, Eastern--Accents and accentuation.
Slavic languages, Eastern--Noun.
Princeton subject headings:
Belarusian language--Accents and accentuation.
Russian language--Accents and accentuation.
Ukrainian language--Accents and accentuation.