Columbia subject headings:
Anti-Nazi movement.
Freundeskreis Carl von Ossietzky--History.
Ossietzky, Carl von, 1889-1938--Friends and associates.
Political refugees--History--20th century.
Harvard subject headings:
Anti-Nazi movement.
Germany--Politics and government--1918-1933
Germany--Politics and government--1933-1945.
Ossietzky, Carl von, 1889-1938.
Princeton subject headings: