Columbia subject headings:
Deportation--Soviet Union--History--Sources.
Exile (Punishment)--Soviet Union--History--Sources.
Intellectuals--Soviet Union--History--Sources.
Political persecution--Soviet Union--History--Sources.
Harvard subject headings:
Exile (Punishment)--Soviet Union--History--Sources.
Intellectuals--Soviet Union--History--Sources.
Russian S.F.S.R. Chrezvychaĭnai︠a︡ komissii︠a︡ po borʹbe s kontr-revoli︠u︡t︠s︡ieĭ i sabotazhem--History--Sources.
Russian S.F.S.R. Gosudarstvennoe politicheskoe upravlenie--History--Sources.
Princeton subject headings:
Deportation--Soviet Union--History--Sources.
Exile (Punishment)--Soviet Union--History--Sources.
Intellectuals--Soviet Union--History--Sources.
Political persecution--Soviet Union--History--Sources.