Abdullah, Habeeb Kareem, and Ahmed Talip Hussein. “Feebly Limit Sets and Cartan G – Space”. Journal of Kufa for Mathematics and Computer 1, no. 4 (November 30, 2011): 70–80. Accessed May 18, 2024. https://journal.uokufa.edu.iq/index.php/jkmc/article/view/2221.