Alicke, B. [P:(DE-HGF)0] ; Geyer, A. [P:(DE-HGF)0] ; Hofzumahaus, A. [P:(DE-Juel1)16326] ; Holland, F. [P:(DE-Juel1)16342] ; Konrad, S. [P:(DE-Juel1)VDB808] ; Pätz, H.-W. [P:(DE-Juel1)16214] ; Schäfer, J. [P:(DE-HGF)0] ; Stutz, J. [P:(DE-HGF)0] ; Volz-Thomas, A. [P:(DE-Juel1)6742] ; Platt, U. [P:(DE-HGF)0]