Beryllium parabolic refractive X-ray lenses for full field imaging and scanning microscopy with hard X-rays B. Lengeler, C.G. Schroer, M. Kuhlmann, B. Benner, T.F. Günzler, O. Kurapova, C. Rau, T. Weitkamp, A. Simionovici, A. Snigirev et SnigirevaJ. Phys. IV France, 104 (2003) 221DOI: https://doi.org/10.1051/jp4:200300065