Studying of the solvability of the equations X^2-ΔY^2=-3 وَaX^2+2bXY-3aY^2=±1. مجلة العلوم الأساسية [Internet]. 2021 Aug. 26 [cited 2026 Jun. 18];34(1). Available from: https://journal.damascusuniversity.edu.sy/index.php/basj/article/view/1236