1.
H. Kadoo F. The Minimal Blocking Set Of Size 22 In PG ( 2 , 13 ). RJCSM [Internet]. 2010 Jun. 3 [cited 2025 Dec. 18];7(2):77-88. Available from: https://csmj.uomosul.edu.iq/index.php/csmj/article/view/36365