BOONPOK, C. Preservation Theorems Concerning g-Hausdorff and rg-Hausdorff Spaces. Asian Health, Science and Technology Reports, [S. l.], v. 11, n. 3, p. 75–77, 2003. Disponível em: https://ph03.tci-thaijo.org/index.php/ahstr/article/view/2489. Acesso em: 30 aug. 2026.