LasuriyaR. A. “Estimates of Groups of Deviations of Faber Sums and Strong Summability of Faber Series on Classes of ψ-Integrals”. Ukrains’kyi Matematychnyi Zhurnal 56, no. 4 (April 25, 2004): 451–461. Accessed September 1, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3767.