Huu Anh, Nguyen, and Do Van Nhon. “OPTIMAL SOLUTION AND GENERATED SET ON DEDUCTION NET”. Science and Technology Development Journal 4, no. 1&2 (February 28, 2001): 10-16. Accessed January 24, 2025. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/3467.