ANH, Vu Quoc; HIEN, Nghiem Manh. Geometric nonlinear vibration analysis of steel frames with semi-rigid connections and rigid-zones. <b>Vietnam Journal of Mechanics</b>, Hanoi, Vietnam, v. 25, n. 2, p. 122–128, 2003. DOI: 10.15625/0866-7136/25/2/6584. Disponível em: https://vjmech.vast.vn/vjmech/article/view/6584. Acesso em: 9 nov. 2025.