PERNAY, S.A.; Cherevko І.М. Approximation scheme of higher accuracy of differential equations of neutral type. Carpathian Mathematical Publications, [S. l.], v. 3, n. 1, p. 112–123, 2011. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/3090. Acesso em: 22 nov. 2024.