Columbia subject headings:
Rilke, Rainer Maria, 1875-1926.
Harvard subject headings:
Koenig, Hertha, 1884-1976.
Rilke, Rainer Maria, 1875-1926--Biography.
Rilke, Sophie, 1851-1931.
Princeton subject headings:
Authors, German--20th century--Correspondence.
Koenig, Hertha, 1884-1976--Correspondence.
Rilke, Rainer Maria, 1875-1926. Correspondence.
Rilke, Sophie, 1851-1931--Correspondence.