Michelson, Betsy, and Hui Zhang. “Preface: 2nd International Conference on Green Transport, Renewable Energy and Environment (GTREE 2023)”. Highlights in Science, Engineering and Technology 83 (February 27, 2024): I. Accessed June 20, 2026. https://drpress.org/ojs/index.php/HSET/article/view/15822.