R. A. Lasuriya, “Groups of deviations of Fourier series in generalized Hölder spaces”, Ukr. Mat. Zhurn., vol. 68, no. 8, pp. 1056–1067, Aug. 2016, Accessed: Apr. 07, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1901