Kowalczyk, Piotr, and Michal Kleiber. “Parameter Sensitivity for Large Deformation Inelastic Problems”. Computer Assisted Methods in Engineering and Science 4, no. 2 (June 30, 1997): 209–228. Accessed May 8, 2026. http://cames.ippt.gov.pl/index.php/cames/article/view/1403.