XAFS Analysis of Jahn-Teller Distortions in Tris(1,2-Diaminoethane)Copper(II) Sulfate Cu(en)3SO4 F. Villain, M. Verdaguer and Y. Dromzee J. Phys. IV France, 7 C2 (1997) C2-659-C2-660 DOI: 10.1051/jp4/1997137