@book {2449,
	title = {Information Theory },
	volume = {12},
	year = {1972},
	publisher = {Encyclopedia Britannica},
	organization = {Encyclopedia Britannica},
	address = {Chicago},
	author = {Shannon, Claude E.}
}
@book {2448,
	title = {The Mathematical Theory of Communication},
	year = {1949},
	publisher = {University of Illinois Press},
	organization = {University of Illinois Press},
	address = {Urbana and Chicago},
	author = {Shannon, Claude E. and Weaver, Warren}
}
