Columbia subject headings:
Dissenters, Religious--Russia (Federation)
Russia (Federation)--Church history.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--History.
Harvard subject headings:
Dissenters, Religious--Soviet Union.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--History.
Soviet Union--Church history.
Princeton subject headings:
Christian heretics--Soviet Union--History.
Dissenters, Religious--Soviet Union--History.
Old Believers--Soviet Union--History.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--History.
Soviet Union--Church history.
Soviet Union--Religion--History.