EXAFS AND NES STUDIES OF RARE EARTH AND TRANSITION METAL CATALYSTS V. PAUL-BONCOUR, A. PERCHERON-GUEGAN, J.C. ACHARD, J. BARRAULT, H. DEXPERT et R.C. KARNATAK J. Phys. Colloques, 47 C8 (1986) C8-305-C8-308 DOI: 10.1051/jphyscol:1986859