TY - BOOK AU - Ratcliff,R.A. TI - Delusions of intelligence: Enigma, Ultra and the end of secure ciphers SN - 9780521736626 AV - D 810 R233d 2006 U1 - 940.54/8743 PY - 2006/// CY - Cambridge, New York PB - Cambridge University Press KW - Enigma cipher system KW - ULTRA (Intelligence system) KW - World War, 1939-1945 KW - Cryptography KW - Electronic intelligence KW - Great Britain KW - Germany UR - http://www.loc.gov/catdir/toc/ecip065/2005036466.html ER -