Junsheng Duan, and Dichen Hu. “Generalized Path Optimization Problem for a Weighted Digraph over an Additively Idempotent Semiring”. Journal of Advances in Applied & Computational Mathematics 7 (November 13, 2020): 25–31. Accessed December 23, 2024. https://avantipublisher.com/index.php/jaacm/article/view/969.