@book{Hartigan75,
	title = {Clustering Algorithms},
	address = {New York, NY},
	author = {J. Hartigan},
	publisher = {John Wiley \& Sons},
	year = {1975},
	biburl = {http://www.bibsonomy.org/bibtex/21e578b491641715a807d1b6b136d2204/pierpaolo.pk81},
	description = {WSD},
	keywords = {imported }
}