R. de Borst, “Robustness in numerical computations of damage evolution in cohesive-frictional materials”, Comp. Assist. Methods Eng. Sci., vol. 4, no. 1, pp. 27–54, Mar. 1997, Accessed: Feb. 24, 2026. [Online]. Available: https://cames.ippt.pan.pl/index.php/cames/article/view/1412