Richter, D. [P:(DE-Juel1)130917] ; Brückel, T. [P:(DE-Juel1)130572] ; Ioffe, A. [P:(DE-Juel1)130729] ; Hansen, G. [P:(DE-Juel1)VDB1979] ; Ziemons, K. [P:(DE-Juel1)VDB1841] ; Eck, D. [P:(DE-Juel1)VDB63539] ; Damm, G. [P:(DE-Juel1)VDB15839] ; Petry, W. [P:(DE-HGF)0]