@book{108977,
	author = {Lee, Jon, and ebrary, Inc.},
	title = {A first course in combinatorial optimization},
	publisher = {Cambridge University Press,},
	year = {2004.},
	series = {Cambridge texts in applied mathematics},
	address = {Cambridge, UK ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10124656}
}