Columbia subject headings:
Authors, Russian--19th century.
Authors, Russian--20th century.
Gosudarstvennyĭ literaturnyĭ muzeĭ (Russia)--Archives.
Russian literature--19th century--History and criticism.
Russian literature--20th century--History and criticism.
Harvard subject headings:
Authors, Russian--19th century--Biography--Sources.
Authors, Russian--20th century--Biography--Sources.
Princeton subject headings:
Russian literature--19th century--History and criticism.