(en) Irwin Abrams, The Nobel Peace Prize and the Lauretes : an illustrated biographical history 1901–2001, Nantucket, Watson Publishing International, , 350 p. (ISBN978-0-88135-388-4 et 0-88135-388-4, lire en ligne), p. 102
(en) James E. Hassell, « Russian Refugees in France and the United States Between the World Wars », Transactions of the American Philosophical Society, vol. 81, , p. 21 (lire en ligne)