F.AL-Mayahi, N. and S.Ibrahaim, L. (2017) “Some Properties of Two-Fuzzy pre-Hilbert Space”, Journal of Al-Qadisiyah for Computer Science and Mathematics, 5(2), pp. 1–7. Available at: https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/147 (Accessed: 3 April 2025).