Azar, Samih Antoine, and Angelic Salha. “The Bias in the Long Run Relation Between the Prices of Brent and WTI Crude Oils”. International Journal of Energy Economics and Policy 7, no. 1 (January 17, 2017): 44–54. Accessed December 23, 2024. https://mail.econjournals.com/index.php/ijeep/article/view/3368.