Sienkiewicz, Zbigniew, and Bogdan Wilczyński. “Minimum Weight Design of Vertically Vibrating 3-D Machine Foundation Coupled to Layered Half-Space 1”. Computer Assisted Methods in Engineering and Science 5, no. 4 (May 29, 2023): 373–387. Accessed January 26, 2025. https://cames3.ippt.pan.pl/index.php/cames/article/view/1334.