@book{2481,
	author = {Nocedal, Jorge. and Wright, Stephen J., and ebrary, Inc.},
	title = {Numerical optimization},
	publisher = {Springer,},
	year = {c1999.},
	series = {Springer series in operations research},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10003036}
}