Columbia subject headings:
Zweig, Friderike Maria Burger Winternitz, 1882-1971--Correspondence.
Zweig, Stefan, 1881-1942--Correspondence.
Harvard subject headings:
Authors, Austrian--20th century--Correspondence
Zweig, Friderike Maria Burger Winternitz, 1882-1971--Correspondence.
Zweig, Stefan, 1881-1942. Correspondence.
Princeton subject headings:
Zweig, Friderike Maria Burger Winternitz, 1882-1971--Correspondence.
Zweig, Stefan, 1881-1942. Correspondence.