DONG, D. T.; DUNG, D. V. Nonlinear vibration of functionally graded material sandwich doubly curved shallow shells reinforced by FGM stiffeners. Part 1: Governing equations. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 39, n. 3, p. 245–257, 2017. DOI: 10.15625/0866-7136/9692. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/9692. Acesso em: 18 apr. 2024.