@article {86641,
	title = {Optimization of Large Amorphous Silicon and Silica Structures for Molecular Dynamics Simulations of Energetic Impacts},
	journal = {Nucl. Instr. Meth. Phys. Res. B},
	volume = {269},
	number = {1568},
	year = {2011},
	author = {J. Samela and S.A. Norris and K. Nordlund and M. J. Aziz}
}
