On an antiperiodic type boundary-value problem for first order nonlinear functional differential equations of non-Volterra’s type. Neliniini Kolyvannya, [S. l.], v. 6, n. 4, p. 550–573, 2003. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/286. Acesso em: 10 mar. 2026.