Columbia subject headings:
Harvard subject headings:
German language--Dialectology--Congresses.
German language--Dialects--Austria--Congresses.
German language--Dialects--Germany--Bavaria--Congresses.
German language--Dialects--Grammar--Congresses.
Princeton subject headings:
German language--Dialectology--Congresses.
German language--Dialects--Austria--Congresses.
German language--Dialects--Germany--Bavaria--Congresses.
German language--Dialects--Grammar--Congresses.