Phuong, Nguyen Thi, Tran Vinh Duc, and Le Cong Thanh. “On the Performance of a Simple Approximation Algorithm for the Longest Path Problem”. Journal of Computer Science and Cybernetics 35, no. 1 (March 18, 2019): 57–68. Accessed November 6, 2025. https://jcc.vast.vn/jcc/article/view/12935.