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