Columbia subject headings:
Harvard subject headings:
Concentration camps--Soviet Union--Fiction--Congresses.
Concentration camps--Soviet Union--History--Congresses.
Forced labor--Soviet Union--History--Congresses.
Glavnoe upravlenie ispravitelʹno-trudovykh lagereĭ OGPU--History--Congresses.
Memory--Social aspects--Soviet Union--History--Congresses.
Political prisoners--Soviet Union--Congresses.
Prisoners' writings, Soviet--History and criticism--Congresses.
Soviet literature--History and criticism--Congresses.
Princeton subject headings:
Forced labor--Soviet Union.
Internment camps--Soviet Union.
Political prisoners--Soviet Union.