A. Gawęcki and B. Janińska, “Computer analysis of slackened-elastic-plastic beams under non-proportional loads”, CAMES, vol. 2, no. 1, pp. 25–40, Aug. 2023, Accessed: Jan. 12, 2025. [Online]. Available: https://cames3.ippt.pan.pl/index.php/cames/article/view/1512