Zhao, Q.T. [P:(DE-Juel1)VDB97138] ; Sandow, C. [P:(DE-Juel1)VDB76199] ; Schmidt, M. [P:(DE-Juel1)VDB8227] ; Richter, S. [P:(DE-Juel1)VDB64182] ; Mantl, S. [P:(DE-Juel1)VDB4959]