Koryagin, Mark, and Vladimir Katargin. “Optimization of an Urban Transport System on the Condition of Different Goals of Municipal Authorities, Operators and Passengers”. Transport 31, no. 1 (March 22, 2016): 63–69. Accessed February 23, 2025. https://btp.vilniustech.lt/index.php/Transport/article/view/1377.