GRANADOS, C. A new decomposition of open and closed sets in topological spaces. Selecciones Matemáticas, [S. l.], v. 8, n. 01, p. 66 - 74, 2021. DOI: 10.17268/sel.mat.2021.01.06. Disponível em: https://revistas.unitru.edu.pe/index.php/SSMM/article/view/3703. Acesso em: 22 jul. 2024.