Choe, B. J. [P:(DE-HGF)0] ; Jeong, D.-G. [P:(DE-HGF)0] ; Park, K. S. [P:(DE-HGF)0] ; Schlesinger, R. [P:(DE-Juel1)VDB1421] ; Labahn, J. [P:(DE-Juel1)VDB886] ; Hofmann, K. P. [P:(DE-HGF)0] ; Büldt, G. [P:(DE-Juel1)131957]