@book{31194,
	author = {Ambardar, Ashok.},
	title = {Analog and digital signal processing /},
	publisher = {Cole Pub. Co.,},
	year = {c1999.},
	address = {Pacific Grove, CA :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy1103/98049858-d.html}
}