EVTUKHOV, V. M.; Korepanova Е. S. Asymptotic representation of solutions of differential equations with rightly varying nonlinearities. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 69, n. 9, p. 1198–1216, 2017. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1770. Acesso em: 6 dec. 2025.