The authors compare experimental and theoretical core-level and valence photoemission, bremsstrahlung isochromat, and 3d to 4f X-ray absorption spectra as well as susceptibility data for Ce compounds. Using the Anderson impurity model and one set of parameters, they obtain an essentially consistent description of these experiments. They deduce new values for the occupancy of the f level and its coupling to the conduction states. These values are substantially larger than the traditional ones.
 

Physical Review B, 28 7330-3, 1983.