KADETS, M. I. Two problems concerning uniform polynomial approximation of continuous functions. Математическая физика, анализ, геометрия, Харків, Україна, v. 9, n. 2, p. 268–271, 2002. Disponível em: https://mag.ilt.kharkiv.ua/index.php/mag/article/view/m09-0268e. Acesso em: 22 лис. 2024.