Borchard, N. [P:(DE-HGF)0] ; Wolf, A. [P:(DE-HGF)0] ; Laabs, V. [P:(DE-HGF)0] ; Aeckersberg, R. [P:(DE-HGF)0] ; Scherer, H. W. [P:(DE-HGF)0] ; Moeller, A. [P:(DE-HGF)0] ; Amelung, W. [P:(DE-Juel1)129427]