@book{69971,
	author = {Cooper, William W. and ebrary, Inc.},
	title = {Handbook on data envelopment analysis},
	publisher = {Kluwer Academic,},
	year = {c2004.},
	series = {International series in operations research & management science ;},
	address = {Boston :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10088563}
}