Columbia subject headings:
Intellectuals--Soviet Union.
Political persecution--Soviet Union.
Soviet Union--Politics and government--1917-1936.
Soviet Union. Obʺedinennoe gosudarstvennoe politicheskoe upravlenie.
Harvard subject headings:
Communism and intellectuals.
Intellectuals--Soviet Union--History--Sources.
Political persecution--Soviet Union--History--Sources.
Slavic studies--Soviet Union--History.
Slavists--Soviet Union--Biography.
Soviet Union--Politics and government--1917-1936--Sources.
Princeton subject headings:
Communism and social sciences--Soviet Union--History.
Political persecution--Soviet Union.
Slavic countries--Study and teaching--Soviet Union--History.
Slavists--Soviet Union.