H. Ziou, M. Himeur, H. Guenfoud, and M. Guenfoud, “An Efficient Finite Element Formulation Based on Deformation Approach for Bending of Functionally Graded Beams”, J. Solid Mech., vol. 12, no. 2, pp. 343–357, Jun. 2020, Accessed: Aug. 22, 2026. [Online]. Available: https://oiccpress.com/jsm/article/view/12183