Columbia subject headings:
Authors, Austrian--20th century--Correspondence.
Authors, German--20th century--Correspondence.
Hofmannsthal, Hugo von, 1874-1929.
Wildgans, Anton, 1881-1932.
Harvard subject headings:
Authors, Austrian--20th century--Correspondence
Authors, German--20th century--Correspondence
Hofmannsthal, Hugo von, 1874-1929.
Wildgans, Anton, 1881-1932
Princeton subject headings: