Columbia subject headings:
Harvard subject headings:
Diplomats--Germany--Biography
Germany (West). Bundesnachrichtendienst--Biography.
Politicians--Germany (East)--Biography
Spies--Germany (East)--Biography.
Wieck, Hans-Georg, 1928-
Wolf, Markus, 1923-2006
Princeton subject headings:
Espionage--Germany--History--20th century.
Germany (East). Ministerium für Staatssicherheit--History--20th century.
Germany (West). Bundesnachrichtendienst--History--20th century.
Wieck, Hans-Georg, 1928-
Wolf, Markus, 1923-2006.