RAJAGOPAL, C. T. On Tauberian Theorems for Some Standard Methods of Summability. The Journal of the Indian Mathematical Society, [S. l.], v. 39, n. 1-4, p. 69–82, 1975. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/16637. Acesso em: 3 may. 2024.