GAL, M. M. Approximate solution of integral equations with delayed argument by Y. D. Sokolov’s method . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 18, n. 6, p. 102–107, 1966. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8463. Acesso em: 7 apr. 2025.