Columbia subject headings:
Harvard subject headings:
Border patrols--Germany (East)--History--Sources.
Germany--History--1945-1990--Sources.
Victims of crimes--Germany (East)--History--Sources.
Princeton subject headings:
Border patrols--Germany (East)--History--Sources.
Germany--History--1945-1990--Sources.
Victims of crimes--Germany (East)--History--Sources.