Columbia subject headings:
Harvard subject headings:
German language--Study and teaching--Foreign speakers--Congresses.
Language and languages--Study and teaching--Germany--Congresses.
Multilingualism--Study and teaching--Europe--Congresses.
Second language acquisition--Study and teaching--Germany--Congresses.
Princeton subject headings:
German language--Study and teaching--Foreign speakers--Congresses.
Language and languages--Study and teaching--Germany--Congresses.
Multilingualism--Study and teaching--Europe--Congresses.
Second language acquisition--Study and teaching--Germany--Congresses.