AHMAD, Z. U. On the Absolute Cesaro Summability Factors of a Fourier Series. The Journal of the Indian Mathematical Society, [S. l.], v. 26, n. 3-4, p. 141–165, 1962. DOI: 10.18311/jims/1962/16887. Disponível em: http://informaticsjournals.com/index.php/jims/article/view/16887. Acesso em: 6 may. 2024.