GRISTCHAK, V. Z.; GOLOVAN, O. A. Asymptotic Solution for the Nonlinear Dynamic Problem of Mechanical Systems with Time Dependent Parameters. Technische Mechanik - European Journal of Engineering Mechanics, [S. l.], v. 15, n. 3, p. 229–236, 2019. Disponível em: https://journals.ub.ovgu.de/index.php/techmech/article/view/1268. Acesso em: 2 may. 2024.