Le, Le Thi Hong, Dat Nguyen Tran Quoc, Cong Nguyen Dinh, and Minh Vu Duc. n.d. “A STAGE-BASED FORMULATION FOR THE FLYING SIDEKICK TRAVELING SALESMAN PROBLEM WITH JETSUITE”. Hong Duc University Journal of Science, no. 7. Accessed September 14, 2026. https://hdujs.edu.vn/index.php/js/article/view/1372.