THINH, Tran Ich; KHOA, Ngo Nhu. A new finite element for free vibration analysis of stiffened composite plates. <b>Vietnam Journal of Mechanics</b>, Hanoi, Vietnam, v. 29, n. 4, p. 529–538, 2007. DOI: 10.15625/0866-7136/29/4/5603. Disponível em: https://vjmech.vast.vn/vjmech/article/view/5603. Acesso em: 8 nov. 2025.