Columbia subject headings:
Nádherný von Borutin, Sidonie, Freiin, 1885-1950--Correspondence.
Rilke, Rainer Maria, 1875-1926--Correspondence.
Harvard subject headings:
Nádherný von Borutin, Sidonie, Freiin, 1885-1950--Correspondence.
Rilke, Rainer Maria, 1875-1926. Correspondence.
Princeton subject headings:
Nádherný von Borutin, Sidonie, Freiin, 1885-1950--Correspondence.
Rilke, Rainer Maria, 1875-1926. Correspondence.