UNWIN, A. Oscars and Interfaces. Journal of Statistical Software, [S. l.], v. 49, n. 11, p. 1–18, 2012. DOI: 10.18637/jss.v049.i11. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v049i11. Acesso em: 7 oct. 2022.