1. J.D. Clarkson.A History of Russia. Second Edition. Random House, New York, 1969.
2. N.V. Riasanovsky. A History of Russia. Second Edition. Oxford University Press, 1969.
3. L. R. Graham.The Soviet Academy of Sciences and the Communist Party, 1927–1932. Princeton University Press, Princeton, New Jersey, 1967.
4. C. E. Ford. Dmitrii Egorov: Mathematics and Religion in Moscow.The Mathematical Intelligencer 13(2) (1991), 24–30.
5. A. Shields. Years Ago. The Mathematical Intelligencer9(4) (1987), 24–27.