Shimabukuro, Y. E., Novo, E. M. and Ponzoni, F. J. (1998) “Vegetation index and spectral linear mixing model for monitoring the Pantanal region”, Pesquisa Agropecuaria Brasileira, 33(13), pp. 1729–1737. doi: 10.1590/S1678-3921.pab1998.v33.5057.