Roberts, Jerry

Lorenz : breaking Hitler's top secret code at Bletchley Park / Captain Jerry Roberts. - Stroud : The History Press, c2017. - 240 pages, [16] pages of plates : illustrations (black and white), facsimiles, portraits ; 25 centimetres.

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Great Britain. Government Communications Headquarters --History.


Lorenz cipher system
World War, 1939-1945--Electronic intelligence
World War, 1939-1945 --Cryptography