@book{31625,
	author = {Williams, Arthur Bernard, and Taylor, Fred J.,},
	title = {Electronic filter design handbook /},
	publisher = {McGraw-Hill,},
	year = {c1995.},
	address = {New York :},
	edition = {3rd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0642/95021977-b.html}
}