ANH, N. D.; TINH, N. D. On the influence of second order non-linearity on random vibrations. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 20, n. 4, p. 1–10, 1998. DOI: 10.15625/0866-7136/10036. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/10036. Acesso em: 5 may. 2024.