Fredholm boundary-value problems for integro-dynamic systems with a degenerate kernel on a time scale. Neliniini Kolyvannya, [S. l.], v. 17, n. 1, p. 32–38, 2014. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/725. Acesso em: 22 jan. 2026.