1. Mathé, E.L., Richard, M.F.: Radiat. Eff. 59 (1981) 77.
2. Pfeiler, W., Poerschke, R.: J. Phys. F 17 (1987) 1043.
3. Fukushima, H., Doyama, M.: J. Phys. F 6 (1976) 677.
4. Pfeiler, W.: Acta Metall. 36 (1988) 2417.
5. Doyama, M.: Progress in the Study of Point Defects, Doyama, M., Yoshida, S. (eds.), Tokyo: Univ. of Tokyo Press 1977, p. 3.