Gerber, P. [P:(DE-HGF)0] ; Roelofs, A. [P:(DE-HGF)0] ; Lohse, O. [P:(DE-HGF)0] ; Kügeler, C. [P:(DE-HGF)0] ; Tiedke, S. [P:(DE-HGF)0] ; Böttger, U. [P:(DE-HGF)0] ; Waser, R. [P:(DE-Juel1)131022]