1. Proc. 2nd Int. Conf. on Ion Beam Modification of Materials,1981
2. Proc. 3rd Int. Conf. on Ion Beam Modification of Materials,1983
3. Proc. 4th Int. Conf. on Ion Beam Modification of Materials,1985
4. Proc. 5th Int. Conf. on Ion Beam Modification of Materials,1987
5. Proc. Int. Conf. on Ion Implantation into Metals,1982