LE, C. I.; TRAN, Q. D.; PHAM, V. N.; NGUYEN, D. K. Free vibration and buckling of bidirectional functionally graded sandwich plates using an efficient Q9 element. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 43, n. 3, p. 277–295, 2021. DOI: 10.15625/0866-7136/15981. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/15981. Acesso em: 19 apr. 2024.