Sun, Yajie [P:(DE-Juel1)168265] ; Amelung, W. [P:(DE-Juel1)129427] ; Wu, Bei [P:(DE-Juel1)138881] ; Haneklaus, S. [P:(DE-HGF)0] ; Schnug, E. [P:(DE-HGF)0] ; Bol, R. [P:(DE-Juel1)145865]