Columbia subject headings:
Harvard subject headings:
Germany--Intellectual life--20th century--Congresses.
Germany--Politics and government--1918-1933--Congresses.
Germany--Politics and government--1918-1933--Philosophy--Congresses.
Princeton subject headings:
Germany--Intellectual life--20th century--Congresses.
Germany--Politics and government--1918-1933--Philosophy--Congresses.