Ashikhmin, Valeriy Nikolaevich, Petr Valentinovich Trusov, and Alexey Igorevich Shveikin. 2008. “A Two-Level Model of Stationary Elasto-Plastic Deformation During Metal Forming Processes. Part 1. Algorithm”. Computational Continuum Mechanics 1 (3): 15-24. https://doi.org/10.7242/1999-6691/2008.1.3.23.