Nguyen, Thanh Manh, Kien Trung Nguyen, and Sergei Alexandrov. “The Numerical Calculation of Statically Admissible Slip-Line Field for Plane Strain Compression of a Three-Layer Symmetric Strip Between Rigid Plates”. Vietnam Journal of Science and Technology 59, no. 1 (January 15, 2021): 125. Accessed October 28, 2021. https://vjs.ac.vn/index.php/jst/article/view/15261.