Coronado, Semei, Thomas M. Fullerton, and Omar Rojas. “A Nonlinear Empirical Analysis of Oil Price Co-Movements”. International Journal of Energy Economics and Policy 8, no. 3 (May 8, 2018): 290–294. Accessed December 21, 2024. https://econjournals.com/index.php/ijeep/article/view/6248.