@book{106300,
	author = {Cheng, S. S. and Lin, Yizhong, and ebrary, Inc.},
	title = {Dual sets of envelopes and characteristic regions of quasi-polynomials},
	publisher = {World Scientific,},
	year = {c2009.},
	address = {Hackensack, NJ :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10361770}
}