Columbia subject headings:
Harvard subject headings:
Germany (East). Ministerium für Staatssicherheit.
Germany (East). Ministerium für Staatssicherheit. Wachregiment Berlin Feliks Dzierzynski.
Intelligence service--Germany (East)
Internal security--Germany (East)
Princeton subject headings:
Berliner Wachregiment "Feliks Dzierzynski"
Internal security--Germany (East)