G. Maier and A. Frangi, “Symmetric boundary element method for ‘discrete’ crack modelling of fracture processes”, CAMES, vol. 5, no. 3, pp. 201–226, May 2023, Accessed: Jan. 26, 2025. [Online]. Available: https://cames3.ippt.pan.pl/index.php/cames/article/view/1340