Westermeier, F. [P:(DE-HGF)0] ; Fischer, B. [P:(DE-HGF)0] ; Roseker, W. [P:(DE-HGF)0] ; Grüble, G. [P:(DE-HGF)0] ; Nägele, G. [P:(DE-Juel1)130858] ; Heinen, M. [P:(DE-HGF)0]