NAKANIENGAR, M. T. The Three-Cusped Hypocycloid and its Spherical Analogue. The Journal of the Indian Mathematical Society, [S. l.], v. 5, n. 3, p. 82–101, 1913. DOI: 10.18311/jims/1913/17737. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/17737. Acesso em: 29 apr. 2024.