JAFFER, Hussein R. Generalization Approximation Spaces Using Combined Edges Systems of a finite number of undirected graphs. Journal of Al-Qadisiyah for Computer Science and Mathematics, [S. l.], v. 15, n. 1, p. Math Page 61–73, 2023. DOI: 10.29304/jqcm.2023.15.1.1168. Disponível em: https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/1168. Acesso em: 22 dec. 2024.