1. Handbook of Mathematical Functions, with Formulas, Graphs, and Mathematical Tables;Abramowitz,1965
2. Animal Aggregations;Alee,1931
3. P. Appell, J. Kampé de Fériet, Fonctions hypergéométriques et hypersphériques. Polynômes d’Hermite, Gauthier-Villars, Paris, 1926.
4. Y. Ben Cheikh, Some results on quasi-monomiality, in: H.M. Srivastava, G. Dattoli, P.E. Ricci, Guest Editors, Proc. Workshop “Advanced Special Functions and Related Topics in Differential Equations”, Melfi, June 24–29, 2001, Appl. Math. Comput. 141, 2003, 63–76.
5. A. Bernardini, G. Dattoli, P.E. Ricci, L-exponentials and higher order Laguerre polynomials, in: Proceedings of the Fourth International Conference of the Society for Special Functions and their Applications (SSFA), Soc. Spec. Funct. Appl., Chennai, 2003, 13–26.