BLATT, H. P. Influence of poles on equioscillation in rational approximation. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 58, n. 1, p. 3–11, 2006. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3429. Acesso em: 5 dec. 2025.