Columbia subject headings:
Harvard subject headings:
Anti-Nazi movement--Germany
Germany--Politics and government--1933-1945.
National socialism and science.
Planck family.
Planck, Erwin, 1893-1945.
Planck, Max, 1858-1947.
Princeton subject headings:
Anti-Nazi movement--Germany.
Germany--Politics and government--1933-1945.
National socialism and science.
Planck family.
Planck, Erwin, 1893-1945.
Planck, Max, 1858-1947.