KHIEM, Nguyen Tien. An approach to study vibration in stochastic systems based on the asymptotic method. <b>Vietnam Journal of Mechanics</b>, Hanoi, Vietnam, v. 29, n. 3, p. 375–384, 2007. DOI: 10.15625/0866-7136/29/3/5546. Disponível em: https://cip.vast.vn/vjmech/article/view/5546. Acesso em: 3 apr. 2026.