Panagopoulos, A. [P:(DE-HGF)0] ; Arampatzis, G. [P:(DE-HGF)0] ; Kuhr, Petra [P:(DE-Juel1)129487] ; Kunkel, Ralf [P:(DE-Juel1)129489] ; Tziritis, E. [P:(DE-HGF)0] ; Wendland, Frank [P:(DE-Juel1)129554]