Schoberth, S. M. [P:(DE-HGF)0] ; Chapman, B. E. [P:(DE-HGF)0] ; Kuchel, P. W. [P:(DE-HGF)0] ; Wittig, R. [P:(DE-HGF)0] ; Grotendorst, Johannes [P:(DE-Juel1)132118] ; Jansen, Paul [P:(DE-Juel1)132150] ; de Graaf, A. A. [P:(DE-HGF)0]