SOMERVILLE, P. N. Numerical Computation of Multivariate Normal and Multivariate t Probabilities over Ellipsoidal Regions. Journal of Statistical Software, [S. l.], v. 6, n. 8, p. 1–10, 2001. DOI: 10.18637/jss.v006.i08. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v006i08. Acesso em: 2 may. 2024.