Deutsch, Harold C. Hitler and his generals: the hidden crisis, January–June 1938 (1974), pp 78–215; the standard scholarly monograph on 1938 crisis excerpt and text search
Faber, David, Munich, 1938: Appeasement and World War II (2008) pp 46–75
Barnett, Correlli, ed., Hitler's Generals Grove Weidenfeld, New York, NY, 1989.
Read, Anthony, The Devil's Disciples: The Lives and Times of Hitler's Inner Circle Pimlico, London, 2003, 2004.
Berlin Diary – Page 179, William Shirer.
Wheeler-Bennett, Sir John, The Nemesis of Power: The German Army in Politics 1918–1945 Palgrave Macmillan, London, 1953, 1964, 2005.
