VOLCHKOV, V. V. On Multipliers in Hardy Spaces. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 53, n. 3, p. 417–421, 2001. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4262. Acesso em: 7 apr. 2025.