STRUCTURAL CHARACTERIZATION OF BIMETALLIC PORPHYRIN COMPLEXES USING DIFFERENCE EXAFS SPECTROSCOPY M. LOOS, J. GOULON, J.M. BARBE et R. GUILARD J. Phys. Colloques, 47 C8 (1986) C8-633-C8-636 DOI: 10.1051/jphyscol:19868119