Neftel, A. [P:(DE-HGF)0] ; Spirig, Ch. [P:(DE-HGF)0] ; Beekmann, M. [P:(DE-HGF)0] ; Dommen, G. Di. [P:(DE-HGF)0] ; Hjorth, J. [P:(DE-HGF)0] ; Volz-Thomas, A. [P:(DE-Juel1)6742] ; Winiwarter, W. [P:(DE-HGF)0]