EVTUKHOV, V. M.; CHERNIKOVA, A. G. Asymptotic behavior of the solutions of second-order differential equations with rapidly varying nonlinearities. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 69, n. 10, p. 1345–1363, 2017. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1786. Acesso em: 5 dec. 2025.