KalatalovaM. A. “$(C)$-Property of the Cesaro Summation Methods of Binary Series ”. Ukrains’kyi Matematychnyi Zhurnal 23, no. 3 (April 26, 1971): 391-399. Accessed November 24, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/8569.