Columbia subject headings:
Harvard subject headings:
Germany (East)--Politics and government.
Germany (East). Ministerium für Staatssicherheit.
Pauliner-Universitätskirche zu Leipzig--History--20th century.
Physicists--Germany--Biography
Protest movements--Germany--Leipzig--History--20th century.
Welzk, Stefan.
Princeton subject headings:
Pauliner-Universitätskirche zu Leipzig.
Protest movements--Germany--Leipzig.