Anh Dung, Tran, Tran Dang Bong, and Pham Ngoc Tuan. “OPTIMAL STRIP LAYOUT OF IRREGULAR SHAPES BY DIE STAMPING THEM FROM METAL SHEET”. Science and Technology Development Journal 11, no. 3 (March 31, 2008): 79-87. Accessed May 20, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/2623.