Richter, D. [P:(DE-Juel1)130917] ; Biehl, R. [P:(DE-Juel1)130542] ; Monkenbusch, M. [P:(DE-Juel1)VDB2684] ; Hoffmann, B. [P:(DE-Juel1)VDB27696] ; Merkel, R. [P:(DE-Juel1)128833]