Columbia subject headings:
Intellectuals--Russia.
Intellectuals--Soviet Union.
Perchenok, F. F. (Feliks Fedorovich), 1931-1993.
Political persecution--Soviet Union.
Harvard subject headings:
Perchenok, F. F. (Feliks Fedorovich), 1931-1993.
Russia--Civilization--History--19th century.
Russia--Intellectual life.
Soviet Union--Civilization.
Soviet Union--Intellectual life.
Princeton subject headings:
Russia--Civilization--History--19th century.
Russia--Intellectual life.
Soviet Union--Civilization--History.
Soviet Union--Intellectual life.