KALATALOVA, M. A. $(C)$-property of the Cesaro summation methods of binary series . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 23, n. 3, p. 391–399, 1971. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8569. Acesso em: 5 dec. 2025.