Epelbaum, E. [P:(DE-HGF)0] ; Gegelia, J. [P:(DE-Juel1)167127] ; Lange, N. [P:(DE-HGF)0] ; Meißner, U.-G. [P:(DE-Juel1)131252] ; Polyakov, M. V. [P:(DE-HGF)0]