Khelil, F., M. Belhouari, N. Benseddiq, and A. Talha. “A Numerical Approach for the Determination of Mode I Stress Intensity Factors in PMMA Materials”. Engineering, Technology & Applied Science Research 4, no. 3 (June 14, 2014): 644–648. Accessed April 6, 2025. https://mail.etasr.com/index.php/ETASR/article/view/442.