Zhang, Qiushi, Jing Qi, Yongtian Ma, Jiaxiang Zhao, and Jianjun Fang. “Time Differential Pricing Model of Urban Rail Transit Considering Passenger Exchange Coefficient”. Promet - Traffic&Transportation 34, no. 4 (July 12, 2022): 609–618. Accessed April 26, 2024. https://traffic2.fpz.hr/index.php/PROMTT/article/view/26.