Gardiennet, C. [P:(DE-HGF)0] ; Loquet, A. [P:(DE-HGF)0] ; Bockmann, A [P:(DE-HGF)0] ; Etzkorn, M. [P:(DE-HGF)0] ; Heise, H. [P:(DE-Juel1)VDB77857] ; Baldus, M. [P:(DE-HGF)0]