Atakishi, N., ev. and Suslov, S. (1987) “Continuous orthogonality property for some classical polynomials of a discrete variable”, Revista Mexicana de Física, 34(4), pp. 541–563. Available at: https://rmf.smf.mx/ojs/index.php/rmf/article/view/2013 (Accessed: 5 July 2024).