Cohen, Warren B.; Maiersperger, Thomas K.; Turner, David P.; Ritts, William D.; Pflugmacher, Dirk; Kennedy, Robert E.; Kirschbaum, Alan; Running, Steven W.; Costa, Marcos; Gower, Stith T. 2006. MODIS land cover and LAI collection 4 product quality across nine sites in the western hemisphere. IEEE Transactions on Geoscience and Remote Sensing. 44(7): 1843-1857.