Columbia subject headings:
Harvard subject headings:
Germany--History--20th century--Congresses.
Learning and scholarship--Congresses
National socialism and science--Congresses.
Princeton subject headings:
Germany--Intellectual life--20th century--Congresses.
National socialism and education--Congresses.
National socialism and scholarship--Congresses.
National socialism and science--Congresses.
Science--Political aspects--Germany--History--Congresses.