1. T.J. Dolan, Fusion Research, Pergamon, New York (1982).
2. S.K. Das and M. Kaminsky in Radiation Effects on Solid Surfaces, Advances in Chemistry Series 158, M. Kaminsky ed., American Chemical Society, Washington 112 (1976).
3. B.M.U. Scherzer in Sputtering by Particle Bombardment, Topics in Applied Physics 52, R. Behrisch ed., Springer, Berlin 271 (1983).
4. J.H. Evans in Encyclopedia of Materials Science and Engineering, M. B. Bever ed., Pergamon, Oxford, 2123 (1983).
5. M.I. Guseva and u. V. Martynenko in Physics of Radiation Effects in Crystals, R.A. Johnson and A.N. Orlov ed., Elsevier, Amsterdam 621 (1986).