Sahai, Vivek, and Shalini Srivastava. 2003. “On Models of Q-Representations of SL (2,&#162;) and <i>Q</I>-Euler Integral Transformation”. The Journal of the Indian Mathematical Society 70 (1-4):73-85. http://informaticsjournals.com/index.php/jims/article/view/21906.