FARHAN IBRAHIM, Saad; H. AZIZ, Ali; MOHAMMED ABOUD, Ghufraan. Finite Element Method for Improving Soft Soil Underneath a Ballast Railway Track. Journal of Engineering and Sustainable Development, Baghdad, Iraq, v. 17, n. 1, p. 200–218, 2013. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1103.. Acesso em: 12 jun. 2026.