Bessas, D. [P:(DE-HGF)0] ; Winkler, M. [P:(DE-HGF)0] ; Sergueev, I. [P:(DE-HGF)0] ; König, J. D. [P:(DE-HGF)0] ; Böttner, H. [P:(DE-HGF)0] ; Hermann, Raphael [P:(DE-Juel1)130706]