Feoktystov, A. [P:(DE-Juel1)144382] ; Willumeit, R. [P:(DE-HGF)0] ; Garamus, V.M. [P:(DE-HGF)0] ; Vékás, L. [P:(DE-HGF)0] ; Bulavin, L. A. [P:(DE-HGF)0] ; Aksenov, V.L. [P:(DE-HGF)0] ; Avdeev, M.V. [P:(DE-HGF)0]