RAMSER, C. A. de S.; SOUZA, A. M. Analysis of the Co-Movements in the Short Term of Commodities Oil, Mineral Coal and Crude Oil. Ciência e Natura, [S. l.], v. 42, p. e9, 2020. DOI: 10.5902/2179460X39881. Disponível em: https://periodicos.ufsm.br/cienciaenatura/article/view/39881. Acesso em: 12 aug. 2024.