Li, X. [P:(DE-Juel1)159574] ; Brauers, T. [P:(DE-Juel1)16306] ; Hofzumahaus, A. [P:(DE-Juel1)16326] ; Lu, Keding [P:(DE-Juel1)6776] ; Li, Y. P. [P:(DE-HGF)0] ; Shao, M. [P:(DE-HGF)0] ; Wagner, T. [P:(DE-HGF)0] ; Wahner, A. [P:(DE-Juel1)16324]