Asymptotics of solutions of the second-order differential equations with regularly and rapidly varying nonlinearities. Neliniini Kolyvannya, [S. l.], v. 21, n. 3, p. 323–346, 2018. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/913. Acesso em: 21 jan. 2026.