Stöhlker, Th. [P:(DE-Ds200)OR1264] ; Mokler, P.H. [P:(DE-HGF)0] ; Kozhuharov, C. [P:(DE-Ds200)OR0633] ; Livingston, E.A. [P:(DE-HGF)0] ; Ullrich, J. [P:(DE-HGF)0]