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 January 17, 2026. http://et.ippt.gov.pl/index.php/et/article/view/923.