M. Bochniak and A.-M. Sändig, “Sensitivity analysis of 2D elastic structures in presence of stress singularities”, Arch. Mech., vol. 51, no. 3-4, pp. 275–291, Jan. 1999, Accessed: Feb. 15, 2026. [Online]. Available: https://am.ippt.pan.pl/index.php/am/article/view/v51p275