@book{5002,
	author = {Tocci, Ronald J. and Widmer, Neal.},
	title = {Digital Systems : principles and applications},
	publisher = {Prentice Hall,},
	year = {2009.},
	series = {10th edition.},
	address = {New Delhi:},
	edition = {10th ed.},
	url = {http://10.10.170.122:8080/browse/book/2558}
}