HE, Qijun. Urban Electric Bus Fleet Transition Research Based on Eco-Impact Valuation Model and Discounted Cash Flow Analysis. Academic Journal of Science and Technology, [S. l.], v. 9, n. 1, p. 127–133, 2024. DOI: 10.54097/qfccjj89. Disponível em: https://drpress.org/ojs/index.php/ajst/article/view/16331. Acesso em: 20 sep. 2026.