1. See, for instance, the classical text byG. N. Watson:A treatise on the Theory of Bessel Functions (Cambridge, Mass., 1944).
2. I. S. Gradshteyn andI. M. Ryzhik:Tables of Integrals, Series and Products (New York, N. Y., 1965). eq. 0.237 (4).
3. G. Szegö:Orthogonal Polynomials, Amer. Math. Soc. Colloq. Publ.,23 (1939), subsect.6·7.
4. Nota Interna;F. Calogero,1977
5. Nota Interna;F. Calogero,1977