Bercuci, A. [P:(DE-HGF)0] ; Bartos, D. [P:(DE-HGF)0] ; Caragheorgheopol, G. [P:(DE-HGF)0] ; Catanescu, V. [P:(DE-HGF)0] ; Constantin, F. [P:(DE-HGF)0] ; Petris, M. [P:(DE-HGF)0] ; Petrovici, M. [P:(DE-HGF)0]