Columbia subject headings:
Harvard subject headings:
Counterculture--Germany--History--Congresses.
Culture conflict--Germany--History--Congresses.
Germany--History--1871-1918--Congresses.
Germany--Intellectual life--19th century--Congresses.
Germany--Intellectual life--20th century--Congresses.
Germany--Social conditions--Congresses.
Princeton subject headings:
Counterculture--Germany--History.
Culture conflict--Germany--History.
Germany--History--1871-1918.
Germany--Social conditions--History.