Meulenberg, W. A. [P:(DE-Juel1)129637] ; Mertens, J. [P:(DE-Juel1)VDB3910] ; Bram, M. [P:(DE-Juel1)129591] ; Buchkremer, H. P. [P:(DE-Juel1)129594] ; Stöver, D. [P:(DE-Juel1)129666]