@book{34234,
	author = {Weintraub, Andres. and Romero, Carlos. and SpringerLink (Online service)},
	title = {Handbook Of Operations Research In Natural Resources},
	publisher = {Springer US,},
	year = {2007.},
	series = {International Series In Operations Research amp; Mana,},
	address = {Boston, MA :},
	url = {http://dx.doi.org/10.1007/978-0-387-71815-6}
}