@book{7928,
	author = {Soni, K. M.},
	title = {Signals & systems /},
	publisher = {S. K. Kataria & Sons,},
	year = {2010.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/8189757296/chopaconline-20}
}