STACKED OR BRIDGE STACKED POLYMERIC STRUCTURES OF METALLOPORPHYRINS AND PHTALOCYANINES INVESTIGATED BY DIFFERENCE EXAFS SPECTROSCOPY M. LOOS, P. FRIANT, I. ASCONE, J. GOULON, J. M. BARBE, A. COUTSOLELOS et R. GUILARDJ. Phys. Colloques, 47 C8 (1986) C8-641-C8-644DOI: https://doi.org/10.1051/jphyscol:19868121