Nastase, N. [P:(DE-Juel1)VDB5485] ; Hardtdegen, H. [P:(DE-Juel1)125593] ; Schmidt, R. [P:(DE-Juel1)VDB4952] ; Bay, H. [P:(DE-Juel1)VDB5486] ; Lüth, H. [P:(DE-Juel1)VDB975] ; Alam, A. [P:(DE-HGF)0] ; Heuken, M. [P:(DE-Juel1)VDB5419]