The following publications are possibly variants of this publication:
- Mapping the Knowledge Structure and Research Evolution of Urban Rail Transit Safety StudiesHui Liu 0015, Yuqian Xie, Yanzhong Liu, Rongshan Nie, Xiaolu Li. access, 7:186437-186455, 2019. [doi]
- Importance Degree Research of Safety Risk Management Processes of Urban Rail Transit Based on Text Mining MethodJie Li, Jianping Wang, Na Xu, Yunpeng Hu, Caiyun Cui. information, 9(2):26, 2018. [doi]