Columbia subject headings:
Communism and intellectuals--Germany (East)--History--Sources.
Communists--Germany (East)--Biography.
Dissenters--Germany (East)--Biography.
Germany (East)--History--Sources.
Havemann, Robert.
Socialism--Germany (East)
Harvard subject headings:
Communism and intellectuals--Germany (East)--History--Sources.
Communists--Germany (East)--Biography
Dissenters--Germany (East)--Biography.
Germany (East)--History--Sources.
Havemann, Robert.
Socialism--Germany (East)
Princeton subject headings:
Communism and intellectuals--Germany (East)--History--Sources.
Communists--Germany (East)--Biography.
Dissenters--Germany (East)--Biography.
Germany (East)--History--Sources.
Havemann, Robert.
Socialism--Germany (East)