Statkus, Tautvydas, and Vaidas Martinkus. “Experimental and Theoretical Research of Deformation of Vertically Loaded Displacement Piles in Sand Soil”. Mokslas – Lietuvos ateitis / Science – Future of Lithuania 6, no. 5 (December 19, 2014): 493-498. Accessed December 1, 2021. https://journals.vgtu.lt/index.php/MLA/article/view/3605.