IEEE Geoscience and Remote Sensing Letters
IEEE Geoscience and Remote Sensing Letters > 2009 > 6 > 4 > 782 - 786
IEEE Geoscience and Remote Sensing Letters > 2011 > 8 > 5 > 963 - 967
IEEE Geoscience and Remote Sensing Letters > 2014 > 11 > 12 > 2173 - 2177