Qashash, Gamal Ali. “Generating Functions for Legendre Polynomials by Using Group Theoretic Method”. University of Aden Journal of Natural and Applied Sciences 23, no. 1 (April 30, 2019): 173–180. Accessed January 23, 2025. https://uajnas.adenuniv.com/index.php/uajnas/article/view/18.