1. presented at this Conference Symposium on Sputtering;Wehner,1986
2. Sputtering by Particle Bombardment I,1981
3. Sputtering by Particle Bombardment II,1983
4. R. Behrisch, ed., Sputtering by Particle Bombardment III, Topics in Applied Physics (Springer, Berlin, Heidelberg, New York) to be published.
5. Proceeding of Symposium on Sputtering, Perchtoldsdorf 1980,1980