Al-Zangana , E.B. (2022) “Results in Projective Geometry PG(r,23) , r 1,2”, Iraqi Journal of Science, 57(2A), pp. 964–971. Available at: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7476 (Accessed: 8 January 2026).