Columbia subject headings:
Orthodox Eastern Church--Soviet Union--History.
Philosophy, Russian--History.
Soviet Union--Intellectual life.
Harvard subject headings:
Belarus--Intellectual life.
Philosophy, Belarusian--History.
Philosophy, Russian--History.
Philosophy, Ukrainian--History.
Renaissance--Soviet Union.
Russia--Intellectual life.
Soviet Union--History.
Soviet Union--Intellectual life.
Ukraine--Intellectual life.
Princeton subject headings:
Orthodox Eastern Church--Russia--History.
Philosophy, Russian--History.
Russia--Intellectual life.