Royal Air Force, pp 375-379. Book call no. The Quarterly Journal of Military History . Edited and Introduced by Robert Cowley. New York, W.W. Norton, 1992.
Book call no.
355.009 E96 The Fatal Decisions . Edited by Seymour Freidin and William Richardson. Translated from the German by Constantine Fitzgibbon. New York, William Sloane Associates, 1956. The Battle of Britain, by General of the Air Force Werner Kreipe, pp 9-28.