1. On the electro-chemical polarity of gases;Grove;Phil. Trans. Roy. Soc. London,1852
2. Sputtering by ion bombardment;Wehner;Advances in Electronics and Electron Physics,1955
3. The ionic bombardment of solid surfaces;Moore;Am. Scientist,1960
4. The collision of positive ions and neutral atoms with surfaces;Massey;Chap. IX in Electronic and Ionic Impact Phenomena,1952
5. Vontrolled figuring of optical surfaces by energetic ionic beams;Meinel;Appl. Opt.,1965