MARSAGLIA, G. Ratios of Normal Variables. Journal of Statistical Software, [S. l.], v. 16, n. 4, p. 1–10, 2006. DOI: 10.18637/jss.v016.i04. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v016i04. Acesso em: 30 sep. 2022.