@book{265499,
	author = {Witten, I. H. and Gori, Marco},
	title = {Web dragons :},
	publisher = {Morgan Kaufmann,},
	year = {c2007},
	series = {Morgan Kaufmann series in multimedia and information systems},
	address = {Amsterdam :},
	url = {http://www.loc.gov/catdir/toc/ecip0617/2006023512.html}
}