The convergence region of an iteration procedure for a semi-nonlinear boundary-value problem. Neliniini Kolyvannya, [S. l.], v. 8, n. 2, p. 278–288, 2005. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/354. Acesso em: 22 jan. 2026.