@article {86801,
	title = {Linear Stability and Instability Patterns in Ion- Sputtered Silicon},
	journal = {J. Phys. Cond. Matt.},
	volume = {21},
	number = {224010},
	year = {2009},
	author = {C.S. Madi and H. B. George and M. J. Aziz}
}
