EXAFS STUDIES OF METAL-SUPPORT INTERACTIONS VS CLUSTER FORMATION IN IRON PARTICLES DISPERSED IN AMORPHOUS ALUMINA L. ALAGNA, D. FIORANI, T. PROSPERI et J.L. DORMANN J. Phys. Colloques, 47 C8 (1986) C8-1057-C8-1060 DOI: 10.1051/jphyscol:19868205