^Wood, Elizabeth A.; The Baba and the Comrade: Gender and Politics in Revolutionary Russia, Indiana University Press, (1997), pg. 80-81, ISBN 0-253-21430-0
^Debs, Eugene V.; Gentle Rebel: Letters of Eugene V. Debs, edited by J. Robert Constantine, University of Illinois, (1995), pg. 223-224, ISBN 0-252-06324-4
^Trott, Margaret A.; Passing through the Eye of the Needle: American Philanthropy and Soviet Medical Research in the 1920s in Rockefeller Philanthropy and Modern Biomedicine: International Initiatives from World War to the Cold War, Bloomington, IN, Indiana University Press, (2002), pg. 148, ISBN 0-253-34151-5
^Harper, Samuel N.; The Russia I Believe In: The Memoirs of Samuel N. Harper 1902 to 1941, Chicago, University of Chicago Press, (1945), p. 143.
^Cohen, Jean-Luis; Le Corbusier and the Mystique of the USSR, Princeton, Princeton University Press, (1992), pp. 41-43, 54, 117, quoted in Alice T. Friedman, Glamour a MoMo: Women's Roles in the Modern Movement in Back from Utopia: The Challenge of the Modern Movement, Uitgeverij 010 Publishers, (2002), pg. 321, ISBN 90-6450-483-0
^Nelson, Amy Music for the Revolution: Musicians and Power in Early Soviet Russia, Pennsylvania State University Press, (2004), pg. 193. ISBN 0-271-02369-4
^"Beethoven als Erzieher in Sowjetrussland" in Neue Freie Press, March 29, 1927.
^Fitzpatrick, Sheila; Education and Social Mobility in the Soviet Union 1921-1934, Cambridge University Press, (1979), pg. 83. ISBN 0-521-89423-9
^Kehoe, Elisabeth; The Titled Americans: Three American Sisters and the English Aristocratic World Into Which They Married, Atlantic Monthly Press, (2004) pg.325. ISBN 0-87113-924-3