@book{91968,
	author = {Santillán Fernández, Alberto. and Torres López, José de Jesús.},
	title = {Metodología seis sigma /},
	publisher = {El autor,},
	year = {2006.},
	address = {Chapingo, Méx. :},
	url = {http://10.13.5.2/tesis/103507.pdf}
}