Z. Szcześniak, “Discrete Model of Wave Propagation in a Rod with Rigid Unloading Characteristic”, Eng. Trans., vol. 40, no. 3, pp. 329–342, Sep. 1992, Accessed: Mar. 19, 2026. [Online]. Available: https://et.ippt.gov.pl/index.php/et/article/view/1599