On a nonlinear boundary-value problem on the half-line for ordinary differential equations in the space of bounded number sequences with a countable set of boundary moments. Neliniini Kolyvannya, [S. l.], v. 6, n. 4, p. 530–549, 2003. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/285. Acesso em: 22 jan. 2026.