Gehring, Markus [P:(DE-Juel1)170077] ; Tempel, Hermann [P:(DE-Juel1)161208] ; Schierholz, Roland [P:(DE-Juel1)161348] ; Merlen, A. [P:(DE-HGF)0] ; Eichel, Rüdiger-A. [P:(DE-Juel1)156123] ; Kungl, Hans [P:(DE-Juel1)157700]