DAO, N. V.; DINH, N. V.; CHI, T. K. Interaction between nonlinear parametric and forced oscillations. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 20, n. 3, p. 16–23, 1998. DOI: 10.15625/0866-7136/10024. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/10024. Acesso em: 28 mar. 2024.