TONG, R., Q. XU, R. WEI, J. HUANG, and Z. XIAO. “Weighted Complex Network Analysis of the Difference Between Nodal Centralities of the Beijing Subway System”. Promet - Traffic&Transportation, Vol. 34, no. 4, July 2022, pp. 523-36, doi:10.7307/ptt.v34i4.3995.