Pfuhl, E. [P:(DE-Juel1)VDB87398] ; Voigt, J. [P:(DE-Juel1)VDB1717] ; Mattauch, S. [P:(DE-Juel1)130821] ; Korolkov, D. [P:(DE-Juel1)VDB58597] ; Brückel, T. [P:(DE-Juel1)130572]