BUNNAG, T. Hedging Petroleum Futures with Multivariate GARCH Models. International Journal of Energy Economics and Policy, [S. l.], v. 5, n. 1, p. 105–120, 2014. Disponível em: https://www.econjournals.com/index.php/ijeep/article/view/1006. Acesso em: 29 apr. 2024.