Columbia subject headings:
Modersohn-Becker, Paula, 1876-1907.
Rilke, Rainer Maria, 1875-1926.
Harvard subject headings:
Modersohn-Becker, Paula, 1876-1907.
Rilke, Rainer Maria, 1875-1926
Rilke, Rainer Maria, 1875-1926--Friends and associates.
Princeton subject headings:
Modersohn-Becker, Paula, 1876-1907.
Rilke, Rainer Maria, 1875-1926.