Kunkel, D. [P:(DE-HGF)0] ; Kaluza, Th. [P:(DE-HGF)0] ; Hoor, P. [P:(DE-HGF)0] ; Ungermann, Jörn [P:(DE-Juel1)129105] ; Kluschat, B. [P:(DE-HGF)0] ; Riese, Martin [P:(DE-Juel1)129145]