Shaker, Ghazwan Farhan, and Raad Aziz Hussain Al-Abdulla. “Sf-Covering Dimension and Sf-Local Dimension”. Journal of Al-Qadisiyah for Computer Science and Mathematics 14, no. 3 (August 12, 2022): Math Page 19–32. Accessed December 22, 2024. https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/992.