Columbia subject headings:
Philosophers--Germany--Biography.
Plessner, Helmuth, 1892-1985--Friends and associates.
Plessner, Helmuth, 1892-1985.
Plessner, Monika, 1913-
Harvard subject headings:
Adorno, Theodor W., 1903-1969
Arendt, Hannah, 1906-1975
Critics--Germany--Biography
Exiles--Germany.
Jews, German--New York (State)--Long Island.
Plessner, Monika.
Political refugees--New York (State)--Long Island.
Scholem, Gershom, 1897-1982
Princeton subject headings:
Philosophers--Germany--Biography.
Plessner, Helmuth, 1892-1985--Friends and associates.
Plessner, Helmuth, 1892-1985.
Plessner, Monika, 1913-