@book{182590,
	author = {Schwartz, Mischa.},
	title = {Information transmission, modulation, and noise /},
	publisher = {McGraw-Hill},
	year = {c1990.},
	series = {Communications and signal processing},
	address = {New York :},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/description/mh022/89027692.html}
}