Kiessling, Fabian [P:(DE-HGF)0] ; Pichler, Bernd J. [P:(DE-HGF)0] ; Hauff, Peter [P:(DE-HGF)0] ; Endepols, Heike [P:(DE-HGF)0] ; Neumaier, Bernd [P:(DE-Juel1)166419]