Sergeev, D. [P:(DE-Juel1)159377] ; Nénert, G. [P:(DE-HGF)0] ; Rapp, D. [P:(DE-HGF)0] ; Beckstein, F. [P:(DE-HGF)0] ; Schöneich, M. [P:(DE-HGF)0] ; Müller, M. [P:(DE-Juel1)129765] ; Gertenbach, J. [P:(DE-HGF)0]