M-209 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "M-209" in English language version.

refsWebsite

Global rank English rank

1web.archive.org

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bell-labs.com

Ritchie, Dennis M. (5 May 2000). "Dabbling in the Cryptographic World — A Story". Nokia Bell Labs.

heise.de

Schmeh, Klaus (September 23, 2004). "Als deutscher Code-Knacker im Zweiten Weltkrieg" [As a German code-breaker in World War II]. Heise Online (in German). Retrieved March 26, 2019.

nsa.gov

m.nsa.gov

Army Security Agency, European Axis Signal Intelligence in World War II, Volume I, Synopsis. DOC ID 3560861.

web.archive.org

"Dossier : Le Converter M209: chiffreur - déchiffreur". us-militaria.com. 1 January 2014. Archived from the original on 1 January 2014.{{cite web}}: CS1 maint: bot: original URL status unknown (link)

worldcat.org

Kahn, David (1967). The Codebreakers: The Story of Secret Writing. New York: The Macmillan Company. ISBN 978-0-684-83130-5. OCLC 59019141