Schöning, M. J. [P:(DE-Juel1)128727] ; Schroth, P. [P:(DE-Juel1)VDB5460] ; Hummel, H. E. [P:(DE-HGF)0] ; Weißbecker, B. [P:(DE-HGF)0] ; Lüth, H. [P:(DE-Juel1)VDB975] ; Schütz, S. [P:(DE-HGF)0]