@article {87966,
	title = {Spontaneous Pattern Formation from Focused and Unfocused Ion Beam Irradiation},
	journal = {Mater. Res. Soc. Symp. Proc.},
	volume = {696},
	year = {2002},
	pages = {N2.8.1-N2.8.6},
	author = {A. Cuenat and M. J. Aziz}
}
