Salloomi, K. N., L. A. Sabri, Y. M. Hamad, and S. Al-Sumaidae. “Nonlinear Buckling Analysis of Steel Cylindrical Shell With Elliptical Cut-Out Subjected to Longitudinal Compressive Load”. International Journal of Automotive and Mechanical Engineering 16, no. 2 (July 4, 2019): 6723-6737. Accessed October 17, 2019. http://journal.ump.edu.my/ijame/article/view/190.