Tong, Ruiyong, Qi Xu, Runbin Wei, Junsheng Huang, and Zhongsheng Xiao. “Weighted Complex Network Analysis of the Difference Between Nodal Centralities of the Beijing Subway System”. Promet - Traffic&Transportation 34, no. 4 (July 7, 2022): 523–536. Accessed October 22, 2024. https://traffic2.fpz.hr/index.php/PROMTT/article/view/14.