@book{4145,
	author = {Ash, Robert B.},
	title = {Information theory },
	publisher = {Dover Publications,},
	year = {1990.},
	address = {New York :},
	note = {"Unabridged and corrected republication of the work originally published by Interscience Publishers ... New York, 1965"--T.p. verso.},
	url = {http://www.loc.gov/catdir/description/dover033/90045415.html}
}