Columbia subject headings:
Slavic languages--Congresses.
Slavic philology--Congresses.
Harvard subject headings:
Language policy--Congresses
Slavic languages--Congresses
Slavic languages--Pronunciation--Congresses.
Slavic philology--Congresses
Princeton subject headings:
Language policy--Congresses.
Slavic languages--Congresses.
Slavic languages--Pronunciation--Congresses.
Slavic philology--Congresses.