Wang, Guangmin, Junwei Yu, and Shubin Li. “An MPCC Formulation and Its Smooth Solution Algorithm for Continuous Network Design Problem”. Promet - Traffic&Transportation 29, no. 6 (December 21, 2017): 569-580. Accessed April 5, 2020. http://traffic.fpz.hr/index.php/PROMTT/article/view/2250.