Mattern, N. [P:(DE-HGF)0] ; Gemming, T. [P:(DE-HGF)0] ; Thomas, J. [P:(DE-HGF)0] ; Goerigk, G. [P:(DE-Juel1)VDB472] ; Franz, H. [P:(DE-HGF)0] ; Eckert, J. [P:(DE-HGF)0]