Schottdorf, M. [P:(DE-Juel1)VDB95237] ; Hofmann, B. [P:(DE-Juel1)VDB63326] ; Kätelhön, E. [P:(DE-Juel1)VDB87435] ; Offenhäusser, A. [P:(DE-Juel1)128713] ; Wolfrum, B. [P:(DE-Juel1)128745]