William F. Friedman NSA Archive - the Index of Coincidence, January 1955 (with Signed Dedication to William Friedman by Howard Campaigne), Statistics for Cryptology 1955

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Files W.F.F. Archive Publications the Index of Coincidence, January 1955 (with Signed Dedication to William Friedman by Howard Campaigne), Statistics for Cryptology 1955

Statistics for Cryptology; Howard H. Campaigne

Document A64688

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the Index of Coincidence; Howard H. Campaigne with Personal Note to William F. Friedman

Document A64687

1.5 MiB

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