GRISTCHAK, V. Z.; KABAK, V. N. Double Asymptotic Method for Nonlinear Forced Oscillations Problem of Mechanical Systems with Time Dependent Parameters. Technische Mechanik - European Journal of Engineering Mechanics, [S. l.], v. 16, n. 4, p. 285–296, 2019. Disponível em: https://journals.ub.ovgu.de/index.php/techmech/article/view/1246. Acesso em: 9 may. 2024.