Elmenhorst, E.M. [P:(DE-HGF)0] ; Elmenhorst, D. [P:(DE-Juel1)131679] ; Wenzel, J. [P:(DE-HGF)0] ; Quehl, J. [P:(DE-HGF)0] ; Mueller, U. [P:(DE-HGF)0] ; Maass, H. [P:(DE-HGF)0] ; Vejvoda, M. [P:(DE-HGF)0] ; Basner, M. [P:(DE-HGF)0]