KORNEICHUK , N. P. On obtaining exact estimates for the derivative of the error of spline interpolation. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 43, n. 2, p. 206–210, 2025. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/9358. Acesso em: 17 feb. 2026.