DAO, N. V. Interaction between the forced and parametric excitations with different degrees of smallness. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 20, n. 2, p. 11–17, 1998. DOI: 10.15625/0866-7136/10016. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/10016. Acesso em: 4 may. 2024.