Z. Sienkiewicz and B. Wilczyński, “Minimum weight design of vertically vibrating 3-D machine foundation coupled to layered half-space 1”, Comp. Assist. Methods Eng. Sci., vol. 5, no. 4, pp. 373–387, May 2023, Accessed: Jun. 30, 2025. [Online]. Available: https://cames.ippt.pan.pl/index.php/cames/article/view/1334