Ernst, M. H. [P:(DE-HGF)0] ; Rupp, L. [P:(DE-Juel1)VDB14753] ; Frank, R. [P:(DE-HGF)0] ; Kühnle, W. [P:(DE-Juel1)VDB23036] ; Lemmen, P. [P:(DE-HGF)0] ; Lenoir, D. [P:(DE-HGF)0] ; Schroeder, J. [P:(DE-Juel1)VDB15383] ; Grimm, C. [P:(DE-Juel1)VDB68138] ; Steinel, T. [P:(DE-Juel1)VDB15385]