Ern, M. [P:(DE-Juel1)VDB13497] ; Krebsbach, M. [P:(DE-Juel1)VDB14772] ; Preusse, P. [P:(DE-Juel1)VDB12001] ; Fröhlich, K. [P:(DE-HGF)0] ; Stober, G. [P:(DE-HGF)0] ; Jacobi, Ch. [P:(DE-HGF)0] ; Schmidt, T. [P:(DE-HGF)0] ; Wickert, J. [P:(DE-HGF)0]