Ritter, Christian [P:(DE-Juel1)156467] ; Goebel, C. [P:(DE-HGF)0] ; Liebig, T. [P:(DE-HGF)0] ; Kaminsky, E. [P:(DE-HGF)0] ; Fink, Gereon Rudolf [P:(DE-Juel1)131720] ; Lehmann, H. C. [Extern]