Khalil, Roshdi, and Mamoon Abu Hammad. “Legendre Fractional Differential Equation and Legender Fractional Polynomials”. International Journal of Applied Mathematical Research 3, no. 3 (June 14, 2014): 214–219. Accessed May 26, 2024. https://sciencepubco.com/index.php/ijamr/article/view/2747.