Röttger, A. [P:(DE-Juel1)VDB92979] ; Weber, S. [P:(DE-Juel1)VDB1997] ; Theisen, W. [P:(DE-Juel1)VDB90949] ; Rajasekeran, B. [P:(DE-Juel1)VDB104516] ; Vassen, R. [P:(DE-Juel1)129670]