Ohl, M. [P:(DE-Juel1)VDB1186] ; Butzek, D. P. [P:(DE-Juel1)VDB4096] ; Kozielewski, T. [P:(DE-Juel1)VDB4287] ; Monkenbusch, M. [P:(DE-Juel1)VDB2684] ; Richter, D. [P:(DE-Juel1)130917]