Wilderotter К. Onn-widths of bounded periodic holomorphic functions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 47, n. 9, p. 1170–1175, 1995. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5516. Acesso em: 7 apr. 2025.