Micro-XAS Using Tapered Capillary Concentrating Optics S.M. Heald, D.L. Brewe, B. Barg, K.H. Kim, F.C. Brown et E. A. Stern J. Phys. IV France, 7 C2 (1997) C2-297-C2-301 DOI: 10.1051/jp4/1997205