Biehl, R. [P:(DE-Juel1)130542] ; Hoffmann, B. [P:(DE-Juel1)VDB27696] ; Monkenbusch, M. [P:(DE-Juel1)VDB2684] ; Pyckhout-Hintzen, W. [P:(DE-Juel1)VDB4207] ; Farago, B. [P:(DE-HGF)0] ; Merkel, R. [P:(DE-Juel1)128833] ; Richter, D. [P:(DE-Juel1)130917]