Mourzina, Y. G. [P:(DE-HGF)0] ; Legin, A. [P:(DE-HGF)0] ; Vlasov, Y. G. [P:(DE-HGF)0] ; Schöning, M. J. [P:(DE-Juel1)128727] ; Schubert, J. [P:(DE-Juel1)128631] ; Zander, W. [P:(DE-Juel1)128648] ; Lüth, H. [P:(DE-Juel1)VDB975]