Nonexistence of a global solution of the mixed problem for a nonlinear differential system with an integral perturbation in a time unbounded domain. Neliniini Kolyvannya, [S. l.], v. 14, n. 4, p. 435–444, 2011. Disponível em: https://nosc.imath.kiev.ua/index.php/nosc/article/view/619. Acesso em: 12 apr. 2026.