BORWEIN, J. M.; BORWEIN, P. B. Ramanujan’s Rational and Algebraic Series for 1/π. The Journal of the Indian Mathematical Society, [S. l.], v. 51, n. 1-2, p. 147–160, 1987. Disponível em: https://informaticsjournals.co.in/index.php/jims/article/view/22024. Acesso em: 7 nov. 2024.