Forghani-elahabad, Majid, and Nelson Kagan. “A Simple Improved Algorithm to Find All the Lower Boundary Points in a Multiple-Node-Pair Multistate Flow Network”. Advances in Systems Science and Applications 19, no. 1 (April 4, 2019): 1-11. Accessed April 26, 2024. https://ijassa.ipu.ru/index.php/ijassa/article/view/656.