Columbia subject headings:
Harvard subject headings:
Dissenters--Russia (Federation)--Congresses.
Dissenters--Soviet Union--Congresses.
Maksimov, Vladimir Emelʹi͡anovich--Congresses.
Russia (Federation)--Intellectual life--Congresses.
Soviet Union--Intellectual life--Congresses.
Princeton subject headings:
Dissenters--Soviet Union--Congresses.
Maksimov, Vladimir Emelʹi︠a︡novich--Congresses.