Keppner, J. [P:(DE-Juel1)145202] ; Korte, C. [P:(DE-Juel1)140525] ; Schubert, J. [P:(DE-Juel1)128631] ; Zander, W. [P:(DE-Juel1)128648] ; Ziegner, M. [P:(DE-Juel1)129815] ; Stolten, D. [P:(DE-Juel1)129928]