@article {Cohen:September 2006:0012-2017:307,
	author = "Cohen, Jonathan",
	title = "Color and Perceptual Variation Revisited: Unknown Facts, Alien Modalities, and Perfect Psychosemantics",
	journal = "dialectica",
	volume = "60",
	year = "September 2006",
	abstract = "<P></P>An adequate ontology of color must face the empirical facts about perceptual variation. In this paper I begin by reviewing a range of data about perceptual variation, and showing how they tell against color physicalism and motivate color relationalism. Next I consider a series of objections to the argument from perceptual variation, and argue that they are unpersuasive. My conclusion will be that the argument remains a powerful obstacle for color physicalism, and a powerful reason to believe in color relationalism instead.",
	pages = "307-319(13)",
	url = "http://www.ingentaconnect.com/content/bpl/dltc/2006/00000060/00000003/art00006"
	doi = "doi:10.1111/j.1746-8361.2006.01057.x"
}