Heedt, S. [P:(DE-Juel1)140272] ; Manolescu, A. [P:(DE-HGF)0] ; Nemnes, G. A. [P:(DE-HGF)0] ; Prost, W. [P:(DE-HGF)0] ; Schubert, J. [P:(DE-Juel1)128631] ; Grützmacher, D. [P:(DE-Juel1)125588] ; Schäpers, Th. [P:(DE-Juel1)128634]