FOROUTAN, M; SHARAFI, Sh; MOHAMMADI, S. Free Vibration Analysis of Functionally Graded Piezoelectric Material Beam by a Modified Mesh Free Method. Journal of Solid Mechanics, [S. l.], v. 11, n. 1, p. 144–154, 2019. Disponível em: https://oiccpress.com/jsm/article/view/12106. Acesso em: 22 aug. 2026.