ARDIA, D.; BOUDT, K.; CATANIA, L. Generalized Autoregressive Score Models in R: The GAS Package. Journal of Statistical Software, [S. l.], v. 88, n. 6, p. 1–28, 2019. DOI: 10.18637/jss.v088.i06. Disponível em: https://www.jstatsoft.org/index.php/jss/article/view/v088i06. Acesso em: 26 apr. 2024.