WEISBERG, S. Dimension Reduction Regression in R. Journal of Statistical Software, [S. l.], v. 7, n. 1, p. 1–22, 2002. DOI: 10.18637/jss.v007.i01. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v007i01. Acesso em: 30 nov. 2022.