@book{152983,
	author = {Hwang, Frank. and Rothblum, Uriel G. and ebrary, Inc.},
	title = {Partitions},
	publisher = {World Scientific Pub. Co.,},
	year = {2013.},
	series = {Partitions : optimality and clustering ;},
	address = {Singapore :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10719601}
}