Surface alloying by ion, electron, and laser beams : papers presented at the 1985 ASM Materials Science Seminar, 12-13 October 1985, Toronto, Ontario, Canada - ASM Materials Science Seminar; Rehn, L. E.; Picraux, S. T.; Wiedersich, H.; American Society for Metals. Materials Science Division. Seminar Committee (ASM, 1987)