Vogel, B. [P:(DE-Juel1)129164] ; Chipperfield, M. P. [P:(DE-HGF)0] ; Grooß, J.-U. [P:(DE-Juel1)129122] ; Streibel, M. [P:(DE-HGF)0] ; Müller, R. [P:(DE-Juel1)129138]