EXAFS Investigation of the Ni2+ Environment in Heavy-Meta1 Fluoride Glasses M. A. Buñuel, R. Cases, J. García, M. G. Proietti et J. A. SoleraJ. Phys. IV France, 7 C2 (1997) C2-1219-C2-1220DOI: https://doi.org/10.1051/jp4:19972202