The mathematical theory of communication / Shannon, Claude Elwood, 1916-2001. Weaver, Warren, 1894-1978. Telecommunication. Mathematical physics. 414 SHM "The first paper is reprinted from the Bell System technical journal, July and October, 1948 ... The second ... appeared [in condensed form] in Scientific American July, 1949." Urbana : University of Illinois Press, 1949. 1949. 1949 Text v (i.e. vii), 117 p. : eng