DAO, Nguyen Van. Interaction of the elements characterizing the quadratic nonlinearity and forced excitation with the other excitations. <b>Vietnam Journal of Mechanics</b>, Hanoi, Vietnam, v. 19, n. 4, p. 11–20, 1997. DOI: 10.15625/0866-7136/10063. Disponível em: https://vjmech.vast.vn/vjmech/article/view/10063. Acesso em: 8 nov. 2025.