Columbia subject headings:
Authors, German--20th century--Correspondence.
Bonstetten, Antoinette de.
Rilke, Rainer Maria, 1875-1926--Correspondence.
Harvard subject headings:
Authors, German--20th century--Correspondence
Bonstetten, Antoinette de--Correspondence.
Bonstetten, Antoinette de.
Rilke, Rainer Maria, 1875-1926. Correspondence
Princeton subject headings: