Minartz, T. [P:(DE-HGF)0] ; Molka, D. [P:(DE-HGF)0] ; Knobloch, M. [P:(DE-Juel1)132163] ; Krempel, S. [P:(DE-HGF)0] ; Ludwig, T. [P:(DE-HGF)0] ; Nagel, W.E. [P:(DE-HGF)0] ; Mohr, B. [P:(DE-Juel1)132199] ; Falter, H. [P:(DE-HGF)0]