KARAMI KHORRAMABADI, M. Free Vibration of Functionally Graded Beams with Piezoelectric Layers Subjected to Axial Load. Journal of Solid Mechanics, [S. l.], v. 1, n. 1, p. 22–28, 2009. Disponível em: https://oiccpress.com/jsm/article/view/12003. Acesso em: 30 jul. 2026.