Gwizdała, Kazimierz, and Paweł Więcławski. “Displacement Piles - Classification and New Methods for the Calculation of Bearing Capacity”. Scientific Review Engineering and Environmental Sciences (SREES) 29, no. 3 (September 30, 2020): 308–318. Accessed January 21, 2025. https://srees.sggw.edu.pl/article/view/1870.