Bleikamp, S. [P:(DE-HGF)0] ; Thoma, A. [P:(DE-HGF)0] ; Polop, C. [P:(DE-Juel1)VDB19523] ; Pirug, G. [P:(DE-Juel1)128784] ; Linke, U. [P:(DE-Juel1)VDB23435] ; Michely, T. [P:(DE-HGF)0]