TODOROV, V.; FILZMOSER, P. An Object-Oriented Framework for Robust Multivariate Analysis. Journal of Statistical Software, [S. l.], v. 32, n. 3, p. 1–47, 2009. DOI: 10.18637/jss.v032.i03. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v032i03. Acesso em: 7 jul. 2022.