Skuodis, Šarūnas, and Tadas Tamošiūnas. “Direct Shear Tests With Evaluation of Variable Shearing Area”. Mokslas – Lietuvos ateitis / Science – Future of Lithuania 6, no. 5 (December 19, 2014): 499-503. Accessed September 17, 2021. https://journals.vgtu.lt/index.php/MLA/article/view/3606.