Kaliszky, Sándor, and János Lógó. “Layout Optimization of Disks by the Use of Rigid-Plastic Element Model”. Computer Assisted Methods in Engineering and Science 9, no. 2 (June 30, 2002): 183–189. Accessed April 17, 2026. https://cames.ippt.pan.pl/index.php/cames/article/view/1128.