Columbia subject headings:
Baltic-Finnic languages--Congresses.
Comparative linguistics--Congresses.
Germanic languages--Congresses.
Slavic languages--Congresses.
Harvard subject headings:
Anthropological linguistics--Europe, Eastern--Congresses.
Indo-European languages--Grammar, Comparative--Uralic--Congresses.
Languages in contact--Europe, Eastern--Congresses.
Nostratic hypothesis--Congresses.
Uralic languages--Grammar, Comparative--Indo-European--Congresses.
Princeton subject headings: