Columbia subject headings:
Authors, German--20th century--Correspondence.
Authors, Russian--20th century--Correspondence.
Pasternak, Boris Leonidovich, 1890-1960--Correspondence.
Rilke, Rainer Maria, 1875-1926--Correspondence.
T︠S︡vetaeva, Marina, 1892-1941--Correspondence.
Harvard subject headings:
Princeton subject headings:
Authors, German--20th century--Correspondence.
Authors, Russian--20th century--Correspondence.
Pasternak, Boris Leonidovich, 1890-1960--Correspondence.
Rilke, Rainer Maria, 1875-1926. Correspondence.
T︠S︡vetaeva, Marina, 1892-1941. Correspondence.