G. Russo, L. Di Girolamo, and G. Marone. “BEM and FEM Approaches to the Analysis of Negative Skin Friction on Piles”. Geotechnical Engineering Journal of the SEAGS & AGSSEA 51, no. 2 (October 15, 2024): 103–110. accessed September 13, 2026. https://ph01.tci-thaijo.org/index.php/SEAGS_AGSSEA_Journal/article/view/258846.