Władysław Kozaczuk, Enigma, 1984, pp. 241–45. Marian Rejewski, "How the Polish Mathematicians Broke Enigma," Appendix D to Władysław Kozaczuk, Enigma, 1984, pp. 246–71. Marian Rejewski, "The Mathematical Solution of the Enigma Cipher," Appendix E to Władysław Kozaczuk, Enigma, 1984, pp. 272–91. Marian Rejewski, "Remarks on Appendix 1 to British Intelligence in the Second World War by F.H. Hinsley", translated by Christopher Kasparek, Cryptologia: a Quarterly Journal Devoted to All Aspects of Cryptology, vol. 6, no. 1 (January 1982), pp. 75–83. Marian Rejewski, "How Polish Mathematicians Deciphered the Enigma", Annals of the History of Computing, Vol. 3, No. 3, Juli 1981, pp. 213–234 The US 6812 Division Bombe Report Eastcote 1944 External links Codebreaking and Secret Weapons in World War II By Bill Momsen An online simulator of the bomba by Dr. David Link 1930s computers Computer-related introductions in 1938 Cryptanalytic devices One-of-a-kind computers Science and technology in Poland Cipher Bureau (Poland) Polish inventions