Lischka, H. [P:(DE-HGF)0] ; Müller, Th. [P:(DE-Juel1)132204] ; Szalay, P.G. [P:(DE-HGF)0] ; Shavitt, I. [P:(DE-HGF)0] ; Pitzer, R.M. [P:(DE-HGF)0] ; Shepard, R. [P:(DE-HGF)0]