GONÇALVES, Daciberg Lima. HISTORICAL ASPECTS OF THE DISCOVERY OF THE EULER CHARACTERISTIC AND SOME OF ITS DEVELOPMENTS IN MODERN TOPOLOGY. Revista Brasileira de História da Matemática, São Paulo, v. 9, n. 17, p. 65–75, 2020. DOI: 10.47976/RBHM2009v9n1765-75. Disponível em: https://mail.rbhm.org.br/index.php/RBHM/article/view/170. Acesso em: 8 out. 2024.