Zeppenfeld, P. [P:(DE-HGF)0] ; Diercks, V. [P:(DE-HGF)0] ; David, R. [P:(DE-Juel1)VDB5790] ; Picaud, F. [P:(DE-HGF)0] ; Ramseyer, C. [P:(DE-HGF)0] ; Girardet, C. [P:(DE-HGF)0]