@book{4228,
	author = {Kamen, Edward W. and Heck, Bonnie S.},
	title = {Fundamentals of Signals and Systems Using the Web and MATLAB},
	publisher = {Prentice Hall,},
	year = {2006.},
	series = {3rd edition.},
	address = {[S.l.] :},
	edition = {3rd ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0131687379/chopaconline-20}
}