THOM, T. T.; KIEN, N. D. Free vibration of two-directional FGM beams using a higher-order Timoshenko beam element. Vietnam Journal of Science and Technology, [S. l.], v. 56, n. 3, p. 380–396, 2018. DOI: 10.15625/2525-2518/56/3/10754. Disponível em: https://vjs.ac.vn/index.php/jst/article/view/10754. Acesso em: 26 apr. 2024.