Blömers, Ch. [P:(DE-HGF)0] ; Lu, J. G. [P:(DE-HGF)0] ; Huang, L. [P:(DE-HGF)0] ; Witte, C. [P:(DE-HGF)0] ; Grützmacher, D. [P:(DE-Juel1)125588] ; Lüth, H. [P:(DE-Juel1)128608] ; Schäpers, Th. [P:(DE-Juel1)128634]