Schellenberg 1956, pp. 319–320. Schellenberg, Walter (1956). The Schellenberg Memoirs. Translated by Louis Hagen. New York: André Deutsch. ASINB0012NS1H8.
Breitman & Goda 2010, pp. 34, 38. Breitman, Richard; Goda, Norman J.W. (2010). Hitler's Shadow: Nazi War Criminals, U.S. Intelligence, and the Cold War. Washington D.C.: National Archives and Records Administration. ASINB017POD60E.
Breitman & Goda 2010, p. 38. Breitman, Richard; Goda, Norman J.W. (2010). Hitler's Shadow: Nazi War Criminals, U.S. Intelligence, and the Cold War. Washington D.C.: National Archives and Records Administration. ASINB017POD60E.
Breitman & Goda 2010, p. 7. Breitman, Richard; Goda, Norman J.W. (2010). Hitler's Shadow: Nazi War Criminals, U.S. Intelligence, and the Cold War. Washington D.C.: National Archives and Records Administration. ASINB017POD60E.
Schellenberg 1956, p. 321. Schellenberg, Walter (1956). The Schellenberg Memoirs. Translated by Louis Hagen. New York: André Deutsch. ASINB0012NS1H8.