@article {xu2015intrinsic,
	title = {Intrinsic representation of hyperspectral imagery for unsupervised feature extraction},
	journal = {IEEE Transactions on Geoscience and Remote Sensing},
	volume = {54},
	number = {2},
	year = {2015},
	pages = {1118{\textendash}1130},
	publisher = {IEEE},
	author = {Xu, Linlin and Wong, Alexander and Li, Fan and Clausi, David A}
}
