N. Omidi, M. Karami Khorramabadi, and A. Niknejad, “Dynamic Stability of Functionally Graded Beams with Piezoelectric Layers Located on a Continuous Elastic Foundation”, J. Solid Mech., vol. 1, no. 2, pp. 130–136, Jun. 2009, Accessed: Jul. 28, 2026. [Online]. Available: https://oiccpress.com/jsm/article/view/12014