MikhailetsV. A., and MurachA. A. “On the Unconditional Almost-Everywhere Convergence of General Orthogonal Series”. Ukrains’kyi Matematychnyi Zhurnal 63, no. 10 (October 25, 2011): 1360-1367. Accessed November 23, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2812.