Souza, Adilson Pacheco de, João Francisco Escobedo, Alexandre Dal Pai, and Eduardo Nardini Gomes. “Estimation of the Incident Global Radiation on Tilted Surfaces Using Isotropic Models and Clearness Index”. Pesquisa Agropecuaria Brasileira 45, no. 4 (January 18, 2011): 339–350. Accessed November 12, 2025. https://apct.sede.embrapa.br/pab/article/view/2804.