“Action of the mobius group ¨ M = hx, y : x 2 = y 6 = 1i on certain real quadratic fields” (2012) Punjab University Journal of Mathematics, 44(1), pp. 29–35. Available at: https://pujm.pu.edu.pk/index.php/pujm/article/view/4 (Accessed: 29 June 2025).