@article {RN6725,
	title = {Superlattice valley engineering for designer topological insulators},
	journal = {Scientific Reports},
	volume = {4},
	year = {2014},
	type = {Journal Article},
	issn = {2045-2322},
	doi = {10.1038/srep06397},
	url = {<Go to ISI>://WOS:000342448500001},
	author = {X. Li and F. Zhang and Q. Niu and J. Feng}
}
