Hammer, M.-U. [P:(DE-HGF)0] ; Vogel, B. [P:(DE-HGF)0] ; Fiedler, A. R. [P:(DE-HGF)0] ; Pätz, H.-W. [P:(DE-Juel1)16214] ; Volz-Thomas, A. [P:(DE-Juel1)6742] ; Grossmann, D. [P:(DE-HGF)0] ; Moortgat, G. K. [P:(DE-HGF)0]