"Enigma Before Ultra - the Polish Success and Check (1933-1939)."

Gilbert Bloch, Cipher A. Deavours (1987)

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DOI: 10.1080/0161-118791862054

access: closed

type: Journal Article

metadata version: 2017-05-28

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Gilbert Bloch, Cipher A. Deavours:
Enigma Before Ultra - the Polish Success and Check (1933-1939). Cryptologia 11(4): 227-234 (1987)

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