SAUL, B. C.; HUDGENS, M. G. The Calculus of M-Estimation in R with geex. Journal of Statistical Software, [S. l.], v. 92, n. 2, p. 1–15, 2020. DOI: 10.18637/jss.v092.i02. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v092i02. Acesso em: 18 apr. 2024.