Balasubramanian, R., and T. N. Shorey. “On the Equation $a(x^m-1)/(x-1)=b(y^n-1)/(y-1)$”. MATHEMATICA SCANDINAVICA 46 (June 1, 1980): 177–182. Accessed May 3, 2024. https://www.mscand.dk/article/view/11861.