@book{207128,
	author = {Du, Dingzhu, and Ko, Ker-I,},
	title = {Theory of computational complexity /},
	publisher = {John Wiley & Sons,},
	year = {2014.},
	series = {Wiley-Interscience series in discrete mathematics and optimization},
	address = {Hoboken, New Jersey :},
	edition = {Second edition.},
	url = {http://onlinelibrary.wiley.com/book/10.1002/9781118595091}
}