Roman, M. O. ; Schaaf, C. B. ; Woodcock, C. E. ; Strahler, A. H. ; Yang, X. Y. ; Braswell, R. H. ; Curtis, P. S. ; Davis, K. J. ; Dragoni, D. ; Goulden, M. L. ; et al. The MODIS (Collection V005) BRDF/albedo product: assessment of spatial representativeness over forested landscapes. Remote Sensing of Environment 2009, 113, 2476-2498.