Columbia subject headings:
Germany--Politics and government--1945-1990.
Germany--Relations--Soviet Union.
Soviet Union--Relations--Germany.
Harvard subject headings:
Germany--Politics and government--1945-1990.
Germany--Relations--Soviet Union.
Soviet Union--Relations--Germany.
Princeton subject headings:
Germany--Politics and government--1945-1990.
Germany--Relations--Soviet Union.
Soviet Union--Relations--Germany.