Documents darchives Etats-Unis France Allemagne Aux Etats-Unis American Institute of Physics, Center for History of Physics. Niels Bohr Library. (One Physics Ellipse, College Park, MD 20740-3848, USA, http://www.aip.org/history) American Philosophical Society Library (105 S. Fifth St., Philadelphia, PA 19106-3386, http://www.amphilsoc.org) http://www.cbi.umn.edu/) Massachusetts Institute of Technology Archives (Room 14N-118, 77 Massachusetts Avenue, Cambridge, MA 02139-4307, http://libraries.mit.edu/archives) A symbolic analysis of relay and switching circuits , Masters of Science, August 10, 1937 (M.I.T. Library) A Mathematical Theory of Cryptography , September 1, 1945, index PO.4, Memorandum for file, (case 20878, MM 45-110-92) National Archives and Records Administration (National Archives at College Park, 8601 Adelphi Road, College Park, Maryland, http://www.nara.gov) | |
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