Thermal Evolution of BaZrO3 and SrZrO3 Perovskites from 4 K to 773 K : an EXAFS Study at Zr-K Edge P.E. Petit, F. Guyot et F. Farges J. Phys. IV France, 7 C2 (1997) C2-1065-C2-1067 DOI: 10.1051/jp4:19972138