Büchler, O. [P:(DE-Juel1)VDB50856] ; Serra, J. M. [P:(DE-Juel1)VDB55636] ; Meulenberg, W. A. [P:(DE-Juel1)129637] ; Sebold, D. [P:(DE-Juel1)129662] ; Buchkremer, H. P. [P:(DE-Juel1)129594]