RAMACHANDRA, K.; SANKARANARAYANAN, A. Notes on the Riemann Zeta-Function. The Journal of the Indian Mathematical Society, [S. l.], v. 57, n. 1-4, p. 67–77, 1991. Disponível em: https://informaticsjournals.com/index.php/jims/article/view/21900. Acesso em: 7 may. 2024.