@book{4775,
	author = {Winder, Steve. and Winder, Steve.},
	title = {Analog and digital filter design /},
	publisher = {Newnes,},
	year = {c2002.},
	address = {Amsterdam ;},
	edition = {2nd ed.},
	note = {Rev. ed. of: Filter design. c1997.},
	url = {http://www.loc.gov/catdir/description/els031/2002071430.html}
}