PARANJPYE, R. P. Feuerbach’s Theorem. The Journal of the Indian Mathematical Society, [S. l.], v. 3, n. 5, p. 193–194, 1911. DOI: 10.18311/jims/1911/17793. Disponível em: http://informaticsjournals.com/index.php/jims/article/view/17793. Acesso em: 30 apr. 2024.