OLIVEIRA, S. C. de; ANDRADE, M. G. de. <b>Stochastic models with heteroskedasticity: a Bayesian approach for Ibovespa returns</b> - doi: 10.4025/actascitechnol.v35i2.13547. Acta Scientiarum. Technology, [S. l.], v. 35, n. 2, p. 339–347, 2012. DOI: 10.4025/actascitechnol.v35i2.13547. Disponível em: https://periodicos.uem.br/actascitechnol/index.php/ActaSciTechnol/article/view/13547. Acesso em: 7 set. 2025.