Gerbig, F. [P:(DE-HGF)0] ; Röttgen, N. [P:(DE-HGF)0] ; Holzapfel, M. [P:(DE-HGF)0] ; Dück, Gerald [P:(DE-Juel1)210494] ; Finsterbusch, M. [P:(DE-Juel1)145623] ; Nirschl, H. [P:(DE-HGF)0]