Columbia subject headings:
Germany (East)--Foreign relations--Germany (West)
Germany (West)--Foreign relations--Germany (East)
Germany--Foreign relations--1945-
Germany--Politics and government--1945-1990.
Harvard subject headings:
Germany (East)--Foreign relations--Germany (West)
Germany (West)--Foreign relations--Germany (East)
Germany--Foreign relations--1945-
Germany--Politics and government--1945-1990.
Princeton subject headings:
Drechsler, Karl--Congresses.
Germany (East)--Foreign relations--Germany (West)--Congresses.
Germany (West)--Foreign relations--Germany (East)--Congresses.
Germany--Politics and government--1945-1990--Congresses.