Properties of solutions of a discrete Volterra system in a Banach space. Neliniini Kolyvannya, [S. l.], v. 10, n. 2, p. 184–187, 2007. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/429. Acesso em: 22 jan. 2026.