Hübner, E. [P:(DE-Juel1)VDB80715] ; Allgaier, J. [P:(DE-Juel1)130501] ; Meyer, M. [P:(DE-Juel1)VDB2821] ; Stellbrink, J. [P:(DE-Juel1)130986] ; Pyckhout-Hintzen, W. [P:(DE-Juel1)VDB4207] ; Richter, D. [P:(DE-Juel1)130917]