Tadee S, Pintoptang U. On the Non-Linear Diophantine Equations $4^{x} - a^{y} = dz^{2}$ and $4^{x} + a^{y} = dz^{2}$. Thai J Math [Internet]. 2023 Sep. 30 [cited 2024 Apr. 29];21(3):563–567. Available from: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1527