SANJIVA RAO, N. Graphic Representation of the Infinite Series 1/n+1/n²+1/n³.... The Journal of the Indian Mathematical Society, [S. l.], v. 3, n. 2, p. 76–77, 1911. DOI: 10.18311/jims/1911/17818. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/17818. Acesso em: 29 apr. 2024.