PRASAD, B. N.; PATI, T. On the Multiplication of Absolutely Summable Dirichlet Series. The Journal of the Indian Mathematical Society, [S. l.], v. 24, n. 3-4, p. 421–431, 1960. DOI: 10.18311/jims/1960/16924. Disponível em: http://informaticsjournals.com/index.php/jims/article/view/16924. Acesso em: 4 may. 2024.