ANH, N. D.; ZAKOVOROTNY, V. L.; HAO, D. N. Van Der Pol-Duffing oscillator under combined harmonic and random excitations. <b>Vietnam Journal of Mechanics</b>, Hanoi, Vietnam, v. 36, n. 3, p. 161–172, 2014. DOI: 10.15625/0866-7136/36/3/3485. Disponível em: https://vjmech.vast.vn/vjmech/article/view/3485. Acesso em: 9 nov. 2025.