Ce Valence State Probed by XAFS Study in Ce2Fe17-xGaxMy Compounds (M = Light Interstitial Element) O. Isnard, S. Miraglia, P. Wolfers, G. Krill and D. Fruchart J. Phys. IV France, 7 C2 (1997) C2-1189-C2-1190 DOI: 10.1051/jp4:19972187