Stein, O. [P:(DE-Juel1)3709] ; Schultz, Martin [P:(DE-Juel1)6952] ; Bouarar, I. [P:(DE-HGF)0] ; Clark, H. [P:(DE-HGF)0] ; Huijnen, V. [P:(DE-HGF)0] ; Gaudel, A. [P:(DE-HGF)0] ; George, M. [P:(DE-HGF)0] ; Clerbaux, C. [P:(DE-HGF)0]