城市发展指数报告全国第五的背后—济南市生态环境和可持续发展调研. Journal of the European Academy Open University, [S. l.], v. 1, n. 4, 2025. DOI: 10.71411/eaou.2025.v1i4.803. Disponível em: https://ojs.shiharr.com/index.php/eaou/article/view/803. Acesso em: 30 jan. 2026.