Absence of synergistic effects in quasi-simultaneous sputtering of tungsten by Ar and D ions oleh C. Cupak, F. Brandstätter, R. Cserveny, F. Troneberger, H. Biber, M. Fellinger, A. Redl, M.V. Moro, D. Böhm, Ch. Eisenmenger-Sittner, A. Mutzke, D. Primetzhofer, F. Aumayr