ATOMIC RELAXATION IN MIXED-VALENT SYSTEMS DEDUCED FROM EXAFS SPECTROSCOPY N. WETTA, G. KRILL, P. HAEN, F. LAPIERRE, M. F. RAVET, C. GODART et F. HOLTZBERGJ. Phys. Colloques, 47 C8 (1986) C8-965-C8-969DOI: https://doi.org/10.1051/jphyscol:19868185