@book{85,
	author = {Tocci, Ronald J.  and Widmer, Neal S. },
	title = {Digital Systems: principles and application },
	publisher = {MCGRAW-HILL EDUCATION (INDIA) LTD India,},
	year = {2009.},
	address = {[S.l.] :},
	url = {http://10.10.170.122:8080/browse/book/2558}
}