1. Harmonic analysis of probability measures on hypergroups;Bloom,1994
2. Higher Transcendental functions;Erdelyi,1953
3. Deux cours d'Analyse Harmonique;Faraut,1984
4. Radon-Transformation auf nilpotenten Lie-Gruppen;Felix;Invent. Math.,1993
5. Singular convolution operators on the Heisenberg group;Geller;Bull. Amer. Math. Soc.,1982