@book{84188,
	author = {NATO Advanced Study Institute Meeting on Combinatorial Optimization: Methods and Applications and Chvátal, Vašek},
	title = {Combinatorial optimization :},
	publisher = {IOS Press,},
	year = {c2011},
	series = {NATO science for peace and security series. Sub-series D, Infromation and communicatin security,},
	address = {Amsterdam :}
}