@article {xu2014kp,
	title = {Kp-means: A clustering algorithm of k {\textquotedblleft}purified{\textquotedblright} means for hyperspectral endmember estimation},
	journal = {IEEE Geoscience and Remote Sensing Letters},
	volume = {11},
	number = {10},
	year = {2014},
	pages = {1787{\textendash}1791},
	publisher = {IEEE},
	author = {Xu, Linlin and Li, Jonathan and Wong, Alexander and Peng, Junhuan}
}
