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2. B. A. BANKS, NASA TM 81721 (1981) p. 1.
3. Z. W. KOWALSKI,J. Mater. Sci. 20 (1985) 1521.
4. I. H. WILSON, J. BELSON and O. AUCIELLO, in “Ion Bombardment Modification of Surfaces: Fundamentals and Applications”, edited by O. Auciello and R. Kelly (Elsevier, Amsterdam, 1984) pp. 225–77.
5. R. S. ROBINSON and S. M. ROSSNAGEL,ibid., pp. 299–322.