Aguilar-Sanchez, R. [P:(DE-HGF)0] ; Su, G.J. [P:(DE-Juel1)VDB71221] ; Homberger, M. [P:(DE-HGF)0] ; Simon, U. [P:(DE-HGF)0] ; Wandlowski, Th. [P:(DE-Juel1)VDB9859]