@book{44720,
	author = {Chong, Edwin K. P. and Zak, Stanislaw H.},
	title = {An introduction to optimization /},
	publisher = {Wiley-Interscience,},
	year = {2008},
	series = {Wiley-Interscience series in discrete mathematics and optimization},
	address = {Hoboken, NJ :},
	edition = {3th ed.}
}