@article {4649,
	title = {Surround modulation in human vision unmasked by masking experiments},
	journal = {Nature Neuroscience},
	year = {2000},
	pages = {724-728},
	doi = {10.1038/76687},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/10862706},
	author = {Cong Yu and Dennis M. Levi}
}
