AKGÜN, R. Polynomial approximation in Bergman spaces. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 68, n. 4, p. 435–448, 2016. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1850. Acesso em: 5 dec. 2025.