AL GHOUR, S.; MANSUR, K. Between Open Sets and Semi-Open Sets. Universitas Scientiarum, [S. l.], v. 23, n. 1, p. 9–20, 2018. DOI: 10.11144/Javeriana.SC23-1.bosa. Disponível em: https://revistas.javeriana.edu.co/index.php/scientarium/article/view/19423. Acesso em: 5 feb. 2023.