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Versteckte Botschaften : die faszinierende Geschichte der Steganografie /
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Online Book -
2
Versteckte Botschaften : die faszinierende Geschichte der Steganografie /
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Online Book -
3
The Friedman legacy : a tribute to William and Elizebeth Friedman /
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Government Document Online Book -
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The quest for cryptologic centralization and the establishment of NSA : 1940-1952 /
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Government Document Online Book -
7
Solving the enigma : history of the cryptanalytic bombe.
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Online Book -
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West wind clear : cryptology and the winds message controversy : a documentary history /
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Government Document Online Book -
10
Masked dispatches : cryptograms and cryptology in American history, 1775-1900 /
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Online Book -
11
The invisible cryptologists : African-Americans, WWII to 1956 /
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Online Book -
12
The invisible cryptologists : African-Americans, WWII to 1956 /
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13
The quest for cryptologic centralization and the establishment of NSA : 1940-1952 /
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Government Document Online Book -
14