↑ Larson, Erik (2011) In the Garden of Beasts New York: Broadway Paperbacks p. 314 ISBN978-0-307-40885-3; citing: - memoranda in the W. E. Dodd papers; - Wheeler-Bennett, John W. (1953) The Nemesis of Power: The German Army in Politics 1918-1945, London: Macmillan p. 323; - Gallo, Max (1972) The Night of the Long Knives New York: Harper & Row, pp. 256, 258; - Rürup, Reinhard (ed.) (1996) Topography of Terror: SS, Gestapo and Reichssichherheitshauptamt on the "Prinz-Albrecht-Terrain", A Documentation Berlin: Verlag Willmuth Arenhovel, pp. 53, 223; - Kershaw Hubris p. 515; - Evans (2005), pp. 34–36; - Strasser, Otto and Stern, Michael (1943) Flight from Terror New York: Robert M. McBride, pp. 252, 263; - Gisevius, Hans Bernd (1947) To the Bitter End New York: Houghton Mifflin, p. 153; - Metcalfe, Phillip (1988) 1933 Sag Harbor, New York: Permanent Press, p. 269
