1. A review of issues in transit economics;Gwilliam;Res. Transp. Econom.,2008
2. Complex system and its application in urban transportation network;Liu;Sci. Technol. Rev.,2017
3. Motifs and superfamilies in critical inrastructure engineering network;Liu;Syst. Eng. Theory Pract.,2013
4. Scheduling synchronization in urban rail transit networks: Trade-offs between transfer passenger and last train operation;Guo;Transp. Res. A,2020
5. Measuring vulnerability of urban metro network from line operation perspective;Sun;Transp. Res. A,2016