Columbia subject headings:
Nazi concentration camps--Germany (East)
Political prisoners--Germany (East)
Prisons--Germany (East)
Stalin, Joseph, 1878-1953--Influence.
Harvard subject headings:
Germany (East)--Politics and government.
Internment camps--Germany (East)
Political prisoners--Germany (East)
Princeton subject headings:
Germany (East)--Politics and government.
Internment camps--Germany (East)
Political prisoners--Germany (East)