ルートヴィヒ・ベック
W., Aspects of the Third Reich, London: Macmillan, pp. 133–178, ISBN 978-0-333-35272-4
Müller, Klaus-Jürgen (1983), “The German Military Opposition before the Second World War”, in Mommsen, Wolfgang; Lettenacke, Lothar, The Fascist Challenge and the Policy of Appeasement, London: George Allen & Unwin, pp. 61–75, ISBN 978-0-04-940068-9
Weinberg, Gerhard (1980), The Foreign Policy of Hitler's Germany Starting World War II, Chicago: University of Chicago Press, ISBN 978-0-226-88511-7
Wheeler-Bennett, John (1967), The Nemesis of Power: The German Army In Politics, 1918–1945, London: Macmillan