Farouk, A., L. Lamboj, and J. Kos. “Influence of Matric Suction on the Shear Strength Behaviour of Unsaturated Sand”. Acta Polytechnica 44, no. 4 (January 4, 2004). Accessed May 5, 2024. https://ojs.cvut.cz/ojs/index.php/ap/article/view/590.