KHANG, N. V.; HUONG, N. T. V.; QUYEN, N. V.; CHUNG, P. T. About the nonlinear vibration equation of the beam. Vietnam Journal of Mechanics, Hanoi, Vietnam, v. 45, n. 3, p. 197–215, 2023. DOI: 10.15625/0866-7136/18189. Disponível em: https://vjs.ac.vn/index.php/vjmech/article/view/18189. Acesso em: 10 may. 2024.