Khlystova, I. [P:(DE-HGF)0] ; Richter, A. [P:(DE-HGF)0] ; Wittrock, F. [P:(DE-HGF)0] ; Bovensmann, H. [P:(DE-HGF)0] ; Burrows, J.P. [P:(DE-HGF)0] ; Schultz, M. [P:(DE-Juel1)6952]