@inproceedings {1351,
	title = {Estimating the number of endmembers in hyperspectral imagery with nearest neighbor distances},
	booktitle = {IEEE IGARSS2012, International Geoscience and Remote Sensing Symposium, Munich, July 22-27},
	year = {2012},
	pages = {1377-1380},
	author = {Rob Heylen and Paul Scheunders}
}
