Notes
- Burke , Colin . 1994 . Information and Secrecy: Vannevar Bush, Ultra and the Other Memex , Metuchen, NJ and Lanham, MD : Scarecrow Press .
- Chandler , W.W. 1983 . ‘The Installation and Maintenance of the Colossus’ . Annals of the History of Computing , 5 : 261
- Kahn , David . 1996 . The Codebreakers: The Story of Secrect Writing, , 2nd ed. , NY : Scribner's .
- Bashe , Charles J. 1936 . IBM's Early Computers , 1 – 33 . Cambridge , MA : MIT Press .
- Burke . Information andSecrecy , 62 245 (note 2)
- Bashe . IBM's Early Computers , 22 – 3 . 25 – 32 . (note 6)
- Parker , Frederick D. 1991 . ‘The Unsolved Messages of Pearl Harbor’ . Cryptologia , 15 ( 4 ) Oct. : 295
- Campbell‐Kelly , Martin and Aspray , William . 1996 . Computer: A History of the Information Machine , NY : Basic Books .
- Hinsley , Francis Harry . 1984 . British Intelligence in the Second World War: Its Influence on Strategy and Operations , Vol.11 , 551 NY : CUP .
- Burke . Information and Secrecy , 224 291 (note 2)
- Burke . Information and Secrecy , 319 (note 2)
- Burke . Information and Secrecy , 295 – 300 . (note 2)
- Burke . Information and Secrecy , 309 (note 2)
- Smith , Bradley F. 1993 . The Ultra Magic Deals and the Most Secret Special Relationship, 1940–1946 , Novato , CA : Presidio Press .