ISBN 978-3-518-41960-1* Peter Hoffmann, "The History of the German Resistance, 1933-1945", McGill-Queen's University Press, 1996* Klaus-Jürgen Müller, "Das Heer und Hitler: Armee und nationalsozialistisches Regime", 1933–1940, Stuttgart, 1969* Louis L. Snyder, "Encyclopaedia of the Third Reich", Contemporary Publishing Company, 1998* Roderick Stackelberg, "The Nazi Germany Sourcebook: An Anthology of Texts", Routledge, 2002* J. P. Stern, "Hitler: The Führer and the People", University of California Press, 1975* Andreas Wirsching, "Man kann nur Boden germanisieren".
ISBN 978-3-518-41960-1* Peter Hoffmann, "The History of the German Resistance, 1933—1945", McGill-Queen’s University Press, 1996* Klaus-Jürgen Müller, "Das Heer und Hitle: Armee und nationalsozialistisches Regime", 1933—1940, Stuttgart, 1969* Louis L. Snyder, "Encyclopaedia of the Third Reich", Contemporary Publishing Company, 1998* Roderick Stackelberg, "The Nazi Germany Sourcebook: An Anthology of Texts", Routledge, 2002* J. P. Stern, "Hitler: The Führer and the People", University of California Press, 1975* Биография барона Курта фон Хаммерштейн-Экворда (англ.