@book{176495,
	author = {Kan, Stephen H.},
	title = {Metrics and models in software quality engineering /},
	publisher = {Addison-Wesley,},
	year = {c2003.},
	address = {Boston :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/toc/fy033/2002027737.html}
}