@book{21750,
	author = {Vuchkov, Ivan N. and Boyadjieva, Lidia N.},
	title = {Quality improvement with design of experiments; a response surface approach},
	publisher = {Kluwer Academic Publication,},
	year = {2001},
	series = {Topics in Safety, Risk, Reliability and Quality},
	address = {Dordrecht:}
}