Columbia subject headings:
Harvard subject headings:
Communism--Germany (East)--History
Culture
Culture--Germany (East).
German reunification question (1949-1990)
Germany--Politics and government--1945-1990.
Left-wing extremists--Germany--History--20th century.
Socialism--Germany--History--20th century
Princeton subject headings:
Communism--Germany (East)--History.
Culture--Germany (East).