Columbia subject headings:
Harvard subject headings:
Hitler, Adolf, 1889-1945
Schwieger, H. G. (Heinz Gerhard), 1913---Correspondence.
Wolf, Paula, 1896-1960--Correspondence.
Wolf, Paula, 1896-1960--Psychology.
Princeton subject headings:
Hitler, Adolf, 1889-1945--Family.
Wolf, Paula, 1896-1960.