RAMAMANI, V. A Proof of the Puiseux - Halphen Inequality in the Theory of Spherical Pendulum Based on an Interesting Identity of S. Ramanujan. Defence Science Journal, [S. l.], v. 27, n. 2, p. 93–98, 2014. DOI: 10.14429/dsj.27.6666. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/6666. Acesso em: 16 jun. 2025.