@book{31272,
	author = {Hsu, Hwei P.},
	title = {Schaum's outline of theory and problems of analog and digital communications /},
	publisher = {McGraw-Hill ;},
	year = {c1993.},
	series = {Schaum's outline series},
	address = {New York :},
	url = {http://www.loc.gov/catdir/description/mh022/92038804.html}
}