Barker, M. [P:(DE-HGF)0] ; Hengst, M. [P:(DE-HGF)0] ; Schmid, J. [P:(DE-HGF)0] ; Buers, H.-J. [P:(DE-Juel1)129185] ; Mittermaier, B. [P:(DE-Juel1)133810] ; Klemp, D. [P:(DE-Juel1)16218] ; Koppmann, R. [P:(DE-Juel1)VDB810]