Fenz, S. [P:(DE-Juel1)VDB68680] ; Bihr, T. [P:(DE-HGF)0] ; Merkel, R. [P:(DE-Juel1)128833] ; Seifert, U. [P:(DE-HGF)0] ; Sengupta, K. [P:(DE-HGF)0] ; Smith, A.-S. [P:(DE-HGF)0]