Columbia subject headings:
Germany (East)--Politics and government.
Opposition (Political science)--Germany (East)
Protest movements--Germany (East)
Harvard subject headings:
Germany (East)--Politics and government.
Opposition (Political science)--Germany (East)
Protest movements--Germany (East)
Princeton subject headings:
Germany (East)--Politics and government.
Opposition (Political science)--Germany (East)
Protest movements--Germany (East)