M. K. EL GAYYAR. Smooth Neutrosophic Topological Spaces. Neutrosophic Sets and Systems, [S. l.], v. 12, p. 65–72, 2016. Disponível em: https://fs.unm.edu/nss8/index.php/111/article/view/4191.. Acesso em: 1 jul. 2025.