@book{7158,
	author = {Cooper, William W. and Seiford, Lawrence M. and SpringerLink (Online service)},
	title = {Introduction to Data Envelopment Analysis and Its Uses: With DEA-Solver Software and References},
	publisher = {Springer Science+Business Media, Inc.,},
	year = {2006.},
	address = {Boston, MA :},
	url = {http://www.lub.lu.se/cgi-bin/ipchk/http://dx.doi.org/10.1007/0-387-29122-9}
}