The intrinsic emission of Seyfert galaxies observed with BeppoSAX/PDS - I. Comparison of the average spectra of the three classes of Seyfert galaxiesS. Deluit and T. J.-L. CourvoisierA&A, 399 1 (2003) 77-90DOI: https://doi.org/10.1051/0004-6361:20021794
