[1]
S. Tadee and U. Pintoptang, β€œOn the Non-Linear Diophantine Equations $4^{x} - a^{y} = dz^{2}$ and $4^{x} + a^{y} = dz^{2}$”, Thai J Math, vol. 21, no. 3, pp. 563–567, Sep. 2023.