1. F.A. Costabile. 2019. Modern Umbral Calculus, De Gruyter Studies In Mathematics, 72. Berlin/Boston.
2. Costabile, F.A., and E. Longo. 2013. $$\Delta _h$$ -Appell sequences and related interpolation problem. Numerical Algorithm 63: 165–186.
3. Costabile, F.A., and M. Gualtieri, A. Napoli. 2023. Polynomial Sequences, De Gruyter Studies in Mathematics, 96. Berlin/Boston.
4. G. Dattoli. 2000. Hermite-Bessel and Laguerre-Bessel Functions: A By-product of the Monomiality Principle, Advanced Special Functions and Applications (Melfi, 1999), Proc. Melfi Sch. Adv. Top. Math. Phys., 1, , 147–164. Aracne, Rome.
5. Frobenius, F.G. 1910. Über die Bernoullischen Zahlen und die Eulerischen Polynome. Sitzungsber. K. Preubischen Akad. Wissenschaft. Berlin 1910: 809–847.