Stiebig, H. [P:(DE-Juel1)VDB5910] ; Haase, C. [P:(DE-Juel1)VDB56139] ; Zahren, C. [P:(DE-Juel1)VDB30416] ; Rech, B. [P:(DE-Juel1)VDB5941] ; Senoussaoui, N. [P:(DE-Juel1)VDB6013]