Xing, Y. [P:(DE-Juel1)VDB75535] ; Meulenberg, W.A. [P:(DE-Juel1)129637] ; Baumann, S. [P:(DE-Juel1)129587] ; Buchkremer, H.P. [P:(DE-Juel1)129594] ; Stöver, D. [P:(DE-Juel1)129666]