Hahn, Herwig [P:(DE-HGF)0] ; Reuters, B. [P:(DE-HGF)0] ; Pooth, Alexander [P:(DE-HGF)0] ; Holländer, Bernhard [P:(DE-Juel1)125595] ; Heuken, Michael [P:(DE-HGF)0] ; Kalisch, Holger [P:(DE-HGF)0] ; Vescan, Andrei [P:(DE-HGF)0]