Tardin, A. T., Assunção, G. V. de, & Soares, J. V. (1992). Preliminary analysis of tm data for coffee, citrus and sugarcane discrimination in Furnas region, MG, Brazil. Pesquisa Agropecuaria Brasileira, 27(9), 1355–1361. https://doi.org/10.1590/S1678-3921.pab1992.v27.3778