Columbia subject headings:
Authors, German--20th century--Correspondence.
Benjamin, Walter, 1892-1940--Correspondence.
Kracauer, Siegfried, 1889-1966--Correspondence.
Harvard subject headings:
Authors, German--20th century--Correspondence
Benjamin, Walter, 1892-1940. Correspondence
Kracauer, Siegfried, 1889-1966--Correspondence.
Princeton subject headings:
Authors, German--Correspondence.
Benjamin, Walter, 1892-1940. Correspondence.
Kracauer, Siegfried, 1889-1966.