@article {10438,
	title = {Nanosphere lithography for the fabrication of ultranarrow graphene nanoribbons and on-chip bandgap tuning of graphene},
	journal = {Advanced Materials},
	year = {2011},
	pages = {1246-1251},
	doi = {10.1002/adma.201003847},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/21381123},
	author = {Lei Liu and Yingli Zhang and Wenlong Wang and Changzhi Gu and Xuedong Bai and Enge Wang}
}
