WEI, C.-C.; CHEN, S.-M. Examining the Relationship of Crude Oil Future Price Return and Agricultural Future Price Return in US. International Journal of Energy Economics and Policy, [S. l.], v. 6, n. 1, p. 58–64, 2016. Disponível em: https://econjournals.com/index.php/ijeep/article/view/1555. Acesso em: 29 mar. 2024.