Holderer, O. [P:(DE-Juel1)130718] ; Monkenbusch, M [P:(DE-Juel1)VDB73596] ; Borchert, G. [P:(DE-HGF)0] ; Breunig, C. [P:(DE-HGF)0] ; Zeitelhack, K. [P:(DE-HGF)0]