Memon, Ahmed [P:(DE-Juel1)132191] ; Riedel, Morris [P:(DE-Juel1)132239] ; Elbers, W [P:(DE-HGF)0] ; Jensen, J [P:(DE-HGF)0] ; Book, M [P:(DE-HGF)0] ; Neukirchen, Helmut [P:(DE-Juel1)169980]