PERPIÑÁN LAMIGUEIRO, O. solaR: Solar Radiation and Photovoltaic Systems with R. Journal of Statistical Software, [S. l.], v. 50, n. 9, p. 1–32, 2012. DOI: 10.18637/jss.v050.i09. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v050i09. Acesso em: 3 feb. 2023.