Serra, J. M. [P:(DE-Juel1)VDB55636] ; Uhlenbruck, S. [P:(DE-Juel1)129580] ; Meulenberg, W. A. [P:(DE-Juel1)129637] ; Buchkremer, H. P. [P:(DE-Juel1)129594] ; Stöver, D. [P:(DE-Juel1)129666]