Voigt, F. [P:(DE-Juel1)VDB5967] ; Unold, T. [P:(DE-HGF)0] ; Brüggemann, R. [P:(DE-HGF)0] ; Carius, R. [P:(DE-Juel1)VDB4964] ; Bauer, G. H. [P:(DE-HGF)0]