Fitsilis, F. [P:(DE-Juel1)VDB3070] ; Regnery, S. [P:(DE-Juel1)VDB3071] ; Ehrhart, P. [P:(DE-Juel1)VDB3072] ; Waser, R. [P:(DE-Juel1)131022] ; Schienle, F. [P:(DE-HGF)0] ; Schumacher, M. [P:(DE-HGF)0] ; Dauelsberg, M. [P:(DE-Juel1)VDB3074] ; Strzyzewski, P. [P:(DE-Juel1)VDB3075] ; Juergensen, H. [P:(DE-Juel1)VDB3076]