@book{748,
	author = {Papoulis, Athanasios.},
	title = {Circuits and Systems: a modern approach},
	publisher = {Not Avail,},
	year = {1981.},
	address = {[S.l.] :},
	edition = {New edition.},
	url = {http://10.10.170.122:8080/browse/book/27659}
}