PACHULIA, N. L. On the Estimation of Strong Means of Fourier Series. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 67, n. 6, p. 809–819, 2015. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2023. Acesso em: 14 apr. 2025.