D. Darwish and J. Cannon, “Nonlinear Viscoelastic Elliptical Bar Under Combined Torsion with Tension”, Eng. Trans., vol. 44, no. 1, pp. 31–53, Mar. 1996, Accessed: Apr. 24, 2025. [Online]. Available: https://et3.ippt.pan.pl/index.php/et/article/view/1449