Wang, Jiayue, Kun Ma, Ling Zhang, Jinghong Wei, and Jianzhong Wang. “Crude Oil Price Bubble Identification and Risk Assessment From Different Spot Markets: Establishing a Sustainable Energy Policy”. Strategic Planning for Energy and the Environment 43, no. 02 (January 14, 2024): 189–214. Accessed July 23, 2024. https://journals.riverpublishers.com/index.php/SPEE/article/view/22705.