GSG -Homeomorphism and -Homeomorphism in Topological Spaces. Journal of International Academy of Physical Sciences, [S. l.], v. 12, n. 1-4, p. 89–96, 2008. Disponível em: http://www.iaps.org.in/journal/index.php/journaliaps/article/view/844. Acesso em: 23 oct. 2026.