Bick, D. S. [P:(DE-HGF)0] ; Krebs, T. B. [P:(DE-HGF)0] ; Kleimaier, D. [P:(DE-HGF)0] ; Zurhelle, A. F. [P:(DE-HGF)0] ; Staikov, G. [P:(DE-Juel1)130982] ; Waser, R. [P:(DE-Juel1)131022] ; Valov, I. [P:(DE-Juel1)131014]