Zhang P, Zhao W, Zhu D. Complexity and Approximation Results for the Min-Sum and Min-Max Disjoint Paths Problems. Comput. Inform. [Internet]. 2013 Mar. 22 [cited 2024 Nov. 8];32(1):23-45. Available from: http://147.213.75.17/ojs/index.php/cai/article/view/1465