Columbia subject headings:
Philosophy, Russian--19th century.
Philosophy, Russian--20th century.
Harvard subject headings:
Philosophy, Russian--19th century.
Philosophy, Russian--20th century.
Religion--Philosophy--Study and teaching--Soviet Union.
Shestov, Lev, 1866-1938.
Solovyov, Vladimir Sergeyevich, 1853-1900
Princeton subject headings:
Philosophy, Russian--19th century.
Philosophy, Russian--20th century.