ECSEDI, István, and Attila BAKSA. “Torsion of Functionally Graded Anisotropic Linearly Elastic Circular Cylinder”. Engineering Transactions 66, no. 4 (October 4, 2018): 413–426. Accessed June 10, 2025. https://et3.ippt.pan.pl/index.php/et/article/view/923.