KOENKER, R.; MIZERA, I. Convex Optimization in R. Journal of Statistical Software, [S. l.], v. 60, n. 5, p. 1–23, 2014. DOI: 10.18637/jss.v060.i05. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v060i05. Acesso em: 3 dec. 2022.