H. H. . Abdullah, A. H. . Al-Saffar, and R. S. . Jasim, “Stresses and Displacements Analyses around Tunnel Opening Under Water Body Using Finite Element Method (FEM) in Baghdad City/Middle of Iraq”, Iraqi Journal of Science, vol. 57, no. 2B, pp. 1267–1279, Jun. 2022, Accessed: Jan. 07, 2026. [Online]. Available: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7355