On higher order generalized Emden-Fowler differential equations with delay argument. Neliniini Kolyvannya, [S. l.], v. 18, n. 4, p. 507–526, 2015. Disponível em: https://nosc.imath.kiev.ua/index.php/nosc/article/view/802. Acesso em: 12 apr. 2026.