Columbia subject headings:
Harvard subject headings:
Banks and banking--Corrupt practices--Switzerland--History--20th century
Espionage, East German--Switzerland--History.
Espionage, East German--Switzerland.
Germany (East)--Foreign relations--Switzerland.
Germany (East)--Relations--Switzerland.
Germany (East). Ministerium für Staatssicherheit--History.
Intelligence service--Germany (East)--History.
Secret service--Germany (East)--History
Switzerland--Foreign relations--Germany (East)
Switzerland--Relations--Germany (East)
Princeton subject headings:
Banks and banking--Corrupt practices--Switzerland--History--20th century.
Espionage, East German--Switzerland.
Germany (East)--Foreign relations--Switzerland.
Germany (East). Ministerium für Staatssicherheit--History.
Intelligence service--Germany (East)--History.
Switzerland--Foreign relations--Germany (East).