Gopalan, M.A., V. Sangeetha, and Manju Somanath. β€œOn the Integer Solutions of the Pell Equation \(x^2=13y^2-3^t\)”. International Journal of Applied Mathematical Research 3, no. 1 (February 11, 2014): 58–61. Accessed May 3, 2024. https://www.sciencepubco.com/index.php/ijamr/article/view/1701.