Full text available for a fee. (The paper was first presented in March 1950 at the National Institute for Radio Engineers Convention in New York.)See also: summary slidesPhilosophical Magazine (Series 7) 41:256-275
In Symposium on Information Theory, pp. 150-152. Ministry of Supply. See also: Computer chess compendium citation in ACM Digital Library: http://dl.acm.org/citation.cfm?id=67012.
See also:Full Text (scanned)Google BooksTech. rep., National Physical Laboratory. (Reprinted in Meltzer, Bernard and Donald Michie (Eds.), Machine Intelligence 5. Edinburgh University Press. (Also in Ince, 1992)