VAKARCHUK, S. B. Relationship between the Hadamard Theorem on Three Disks and Certain Problems of Polynomial Approximation of Analytic Functions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 53, n. 2, p. 250–254, 2001. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4241. Acesso em: 5 dec. 2025.