Columbia subject headings:
Harvard subject headings:
Brandt, Willy, 1913-1992.
Erfurter Hof--History.
German reunification question (1949-1990)
Germany (East)--Foreign relations--Germany (West)
Germany (West)--Foreign relations--Germany (East)
Heads of state--Germany (West)
Hotels--Germany--Erfurt--History--20th century.
Summit meetings--Germany--Erfurt--History--20th century.
Princeton subject headings:
Brandt, Willy, 1913-1992.
Germany (East)--Foreign relations--Germany (West)
Germany (West)--Foreign relations--Germany (East)