@book{104153,
	author = {Hayes, M. H.},
	title = {Schaum's outline of theory and problems of digital signal processing /},
	publisher = {McGraw Hill,},
	year = {c1999.},
	address = {New York :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/description/mh023/98043324.html}
}