Estimation models of global solar irradiation in vertical surface. Research, Society and Development, [S. l.], v. 10, n. 7, p. e38910716721, 2021. DOI: 10.33448/rsd-v10i7.16721. Disponível em: https://www.rsdjournal.org/rsd/article/view/16721. Acesso em: 22 feb. 2026.