Hirsch, A. [P:(DE-HGF)0] ; Kegler, Philip [P:(DE-Juel1)159378] ; Alencar, I. [P:(DE-HGF)0] ; Ruiz-Fuertes, J. [P:(DE-HGF)0] ; Thust, A. [P:(DE-HGF)0] ; Schausten, C. [P:(DE-HGF)0] ; Peters, L. [P:(DE-HGF)0] ; Roth, G. [P:(DE-HGF)0]