Columbia subject headings:
Intellectuals--Russia--Congresses.
Russia--Intellectual life--Congresses.
Harvard subject headings:
Intellectuals--Russia--Congresses.
Intellectuals--Soviet Union--Congresses.
Russia--History, Local--Congresses.
Russia--Intellectual life--Congresses.
Soviet Union--History, Local--Congresses.
Soviet Union--Intellectual life--Congresses.
Princeton subject headings:
Intellectuals--Russia--Congresses.
Russia--Intellectual life--Congresses.