Schaffrath, K. [P:(DE-HGF)0] ; Diarra, S. [P:(DE-HGF)0] ; Gehlen, Jana [P:(DE-Juel1)169371] ; Müller, Frank [P:(DE-Juel1)131939] ; Walter, P. [P:(DE-HGF)0] ; Johnen, S. [P:(DE-HGF)0]