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Date: 2005-04-06 04:15:21Bletchley Park Enigma machine Marian Rejewski Zygalski sheets Bomba Bombe John Herivel Ultra Cyclometer Cryptography Espionage Biuro Szyfrów | Some Human Factors in CodebreakingAdd to Reading ListSource URL: www.fas.orgDownload Document from Source WebsiteFile Size: 258,52 KBShare Document on Facebook |