Goergen, Laura Camila de Godoy, et al. “Spectral Indices for Chlorophyll Seasonal Dynamics Analysis in Leaves of Eucalyptus Grandis”. Pesquisa Florestal Brasileira, vol. 35, no. 82, June 2015, pp. 55-61, https://doi.org/10.4336/2015.pfb.35.82.841.