Columbia subject headings:
German language--Austria--Study and teaching--Bibliography.
German language--Austria--Study and teaching--Congresses.
Harvard subject headings:
German language--Dialects--Austria--Congresses.
German language--Study and teaching--Austria--Bibliography.
German language--Study and teaching--Austria--Congresses.
German language--Study and teaching--Foreign speakers--Congresses.
Language and languages--Variation--Congresses
Princeton subject headings:
German language--Austria--Study and teaching--Bibliography.
German language--Austria--Study and teaching--Congresses.