Leo Tolstoy (2016). “The Complete Novels of Leo Tolstoy in One Premium Edition (World Classics Series): Anna Karenina, War and Peace, Resurrection, Childhood, Boyhood, Youth, The Cossacks, The Death of Ivan Ilyich... (Including Biographies of the Author)”, p.1092, e-artnow
graf Leo Tolstoy, Constance Garnett, David Taffel (2005). “The Kingdom of God is Within You: Christianity Not as a Mystic Religion But as a New Theory of Life”, p.45, Barnes & Noble Publishing