Xiaoying Liu, “ Intelligent Framework for Regional Tourism Ecological Efficiency Evaluation under High-Quality Development with Single-Valued Neutrosophic Information ”, Neutrosophic Sets Syst., vol. 76, pp. 375–399, Oct. 2024, Accessed: Apr. 08, 2025. [Online]. Available: https://fs.unm.edu/nss8/index.php/111/article/view/5201