Linear boundary-value problems for systems of integro-differential equations with a degenerate kernel. Resonance case for a weakly perturbed boundary-value problem. Neliniini Kolyvannya, [S. l.], v. 25, n. 2–3, p. 174–183, 2022. Disponível em: https://nosc.imath.kiev.ua/index.php/nosc/article/view/1065. Acesso em: 12 apr. 2026.