Dvorak, J. [P:(DE-Ds200)OR3292] ; Block, M. [P:(DE-Ds200)OR0128] ; Düllmann, Ch.E. [P:(DE-HGF)0] ; Heinz, S. [P:(DE-Ds200)OR0446] ; Herzberg, R.-D. [P:(DE-HGF)0] ; Schädel, M. [P:(DE-Ds200)OR1170]