Yuri Felshtinsky, Lenin and his Comrades. The Bolsheviks take over Russia 1917-1924, ISBN 978-1-929631-95-7, Enigma, New York 2010, S. 34
Archibald L. Patterson, Between Hitler and Stalin: The Quick Life and Secret Death of Edward Smigly Rydz, Marshal of Poland, ISBN 978-1-60844-563-9, Dog Ear Publishing, Indianapolis 2010, S. 41 ff.
Jerzy Jan Lerski (auch: George J. Lerski), Historical Dictionary of Poland, 966-1945, ISBN 0-313-26007-9, Greenwood, Westport 1996, S. 456
Halik Kochanski, The Eagle Unbowed: Poland and the Poles in the Second World War, ISBN 978-0-674-06814-8, Harvard University Press, 2012, S. 6
Hiroaki Kuromiya, The voices of the dead: Stalin's great terror in the 1930s, ISBN 978-0-300-12389-0, Yale University Press, 2007, S. 220
M. B. B. Biskupski, Independence Day: Myth, Symbol, and the Creation of Modern Poland, ISBN 978-0-19-965881-7, Oxford University Press, 2012, S. 78f.
Robert Machray, The Poland of Pilsudski: incorporating „Poland, 1914-1931“, much condensed and carrying on the history of Poland till mid-July, 1936, G. Allen & Unwin, New York 1937, S. 338