Columbia subject headings:
Harvard subject headings:
Engineering--Study and teaching--Congresses
German language--Study and teaching--Congresses.
Mathematics--Study and teaching--Congresses
Science--Study and teaching--Congresses
Second language acquisition--Congresses.
Technology--Study and teaching--Congresses
Princeton subject headings:
Engineering--Study and teaching--Congresses.
German language--Study and teaching--Congresses.
Mathematics--Study and teaching--Congresses.
Science--Study and teaching--Congresses.
Second language acquisition--Congresses.
Technology--Study and teaching--Congresses.