@article {14,
	title = {Model of epitaxial growth of GaAs on Si(100) - nucleation at surface steps},
	journal = {J. Vac. Sci. Technol.},
	volume = {B7},
	year = {1989},
	pages = {695},
	author = {O.L. Alerhand E. Kaxiras and J.D. Joannopoulos and G.W. Turner}
}
