EXAFS STUDY OF NICKEL AND IRON PRECURSORS OF HOMOGENEOUS ZIEGLER-TYPE HYDROGENATION CATALYSTS C. ESSELIN, E. BAUER-GROSSE, J. GOULON, C. WILLIAMS, Y. CHAUVIN, D. COMMEREUC et E. FREUNDJ. Phys. Colloques, 47 C8 (1986) C8-243-C8-248DOI: https://doi.org/10.1051/jphyscol:1986845