1. Cai, D., Xiao, Y., Jiang, C.: Competition between high-speed rail and airlines: considering both passenger and cargo. Transp. Policy 110, 379–393 (2021)
2. Yang, K., Deng, C., Lin, Y.: Evaluation on railway freight services quality based on TOPSIS method. Technol. Econ. Areas Commun. 12(6), 61–64 (2010). (in Chinese)
3. Zhang, Y., Yang, Y., Wang, J.: Study on service quality of high-speed railway express business based on triangular fuzzy number and fuzzy evaluation. Logist. Technol. 36(5), 72–77 (2017). (in Chinese)
4. Tang, L., Zhou, L., Xu, Y., Xu, Z., Tang, H.: Research on railway logistics service quality evaluation based on object extension model. Railw. Freight Transp. 38(12), 20–25 (2020). (in Chinese)
5. Zhou, L., Tang, L., Xu, Z., Tang, H.: Discussion on evaluation of railway freight service quality based on grey comprehensive evaluation method. Railw. Freight Transp. 39(12), 47–53 (2021). (in Chinese)