ARAFA A. NASEF, M. KAMEL EL-SAYED. Properties of Topological Concepts Associated with Weak Systems. Mathematical Statistician and Engineering Applications, [S. l.], v. 71, n. 4, p. 6631–6641, 2022. DOI: 10.17762/msea.v71i4.1249. Disponível em: https://www.philstat.org/index.php/MSEA/article/view/1249. Acesso em: 2 may. 2024.