Cámara, M., J. Fàbrega, M. A. Fiol, and E. Garriga. “Some Families of Orthogonal Polynomials of a Discrete Variable and Their Applications to Graphs and Codes”. The Electronic Journal of Combinatorics 16, no. 1 (July 9, 2009): R83. Accessed March 16, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v16i1r83.