Faraj Jwamer, Karwan Hama, and Hozan Dlshad Hilmi. “Asymptotic Behavior of Eigenvalues and Eigenfunctions of T.Regge Fractional Problem”. Journal of Al-Qadisiyah for Computer Science and Mathematics, vol. 14, no. 3, Sept. 2022, pp. Math Page 89-100, doi:10.29304/jqcm.2022.14.3.1031.