Columbia subject headings:
Dissenters--Germany (East)--Biography.
Havemann, Robert.
Intellectuals--Germany (East)--Biography.
Opposition (Political science)--Germany (East)--History.
Philosophy--Germany (East)
Political science--Germany (East)
Harvard subject headings:
Communism--Germany (East)
Communists--Germany (East)--Biography
Havemann, Robert.
Princeton subject headings:
Dissenters--Germany (East)--Biography.
Havemann, Robert.
Intellectuals--Germany (East)--Biography.
Opposition (Political science)--Germany (East)--History.
Philosophy--Germany (East).
Political science--Germany (East).