HOANG TON THAT, Lan. Free Vibration and Buckling Analyses of Functionally Graded Porous Columns by FEM. Applications of Modelling and Simulation, [S. l.], v. 6, p. 98–106, 2022. Disponível em: https://www.ojs.arqiipubl.com/index.php/AMS_Journal/article/view/355. Acesso em: 9 may. 2026.