Wang, Jiayue, Kun Ma, Ling Zhang, Jinghong Wei, and Jianzhong Wang. 2024. “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 (02):189-214. https://doi.org/10.13052/spee1048-5236.4321.