Temperature and Pressure Induced Valence Transitions in YbCu5-xGax Studied by Yb-LIII XANES R. Lübbers, J. Dumschat, O. Wortmann et E. Bauer J. Phys. IV France, 7 C2 (1997) C2-1021-C2-1022 DOI: 10.1051/jp4:19972125