Eicker, Sven O. [P:(DE-HGF)0] ; Langen, Karl-Josef [P:(DE-Juel1)131777] ; Galldiks, Norbert [P:(DE-Juel1)143792] ; Stoffels, Gabriele [P:(DE-Juel1)131627] ; Herdmann, Jörg [P:(DE-HGF)0] ; Steiger, Hans-Jakob [P:(DE-HGF)0] ; Floeth, Frank W. [P:(DE-HGF)0]