Valov, Ilia [P:(DE-Juel1)131014] ; Lübben, Michael [P:(DE-Juel1)162283] ; Tappertzhofen, S. [P:(DE-HGF)0] ; v. d. Hurk, J. [P:(DE-HGF)0] ; Waser, R. [P:(DE-Juel1)131022]