DETERMINATION OF STRUCTURE AND VALENCE IN VANADIUM BRONZE BY X-RAY ABSORPTION SPECTROSCOPY F. W. LYTLE, R. B. GREEGOR et I. D. RAISTRICK J. Phys. Colloques, 47 C8 (1986) C8-719-C8-723 DOI: 10.1051/jphyscol:19868135