Garzón, Antonio J., and Luis Á. Hierro. “Fracking, Wars and Stock Market Crashes: The Price of Oil During the Great Recession”. International Journal of Energy Economics and Policy 8, no. 2 (March 20, 2018): 20–30. Accessed November 21, 2024. https://econjournals.com/index.php/ijeep/article/view/5936.