SHYDLICH, A. L. Saturation of the linear methods of summation of Fourier series in the spaces S pφ. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 60, n. 6, p. 815 – 828, 2008. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3198. Acesso em: 14 apr. 2025.