EVTUKHOV , V. M.; CHERNIKOVA , A. G. On the asymptotic of solutions of the second-order differential equations with rapidly varying nonlinearities. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 73, n. 4, p. 488–505, 2021. DOI: 10.37863/umzh.v73i4.627. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/627. Acesso em: 7 apr. 2025.