(2006) „Illusory color mixing upon perceptual fading and filling-in does not result in "forbidden colors"”. Vision Research46 (14), 2251–8. o. DOI:10.1016/j.visres.2005.11.030. PMID16469353.
handprint.com
MacEvoy, Bruce: Light and the eye. Handprint, 2005. (Hozzáférés: 2007. május 5.)
(2006) „Illusory color mixing upon perceptual fading and filling-in does not result in "forbidden colors"”. Vision Research46 (14), 2251–8. o. DOI:10.1016/j.visres.2005.11.030. PMID16469353.