Anomalous behaviour of X-ray absorption observed on the highly correlated cerium nitride (CeN) compound J.P. Kappler, E. Beaurepaire, G. Krill, J. Serenis, C. Godart et G. Olcese J. Phys. I France, 1 10 (1991) 1381-1387 DOI: 10.1051/jp1:1991214