Livingstone, M.; Hubel, D. (1988). "Segregation of form, color, movement, and depth: Anatomy, physiology, and perception". Science. 240 (4853): 740–749. doi:10.1126/science.3283936. PMID3283936.
harvard.edu
hubel.med.harvard.edu
Hubel, David 1995. Eye, brain and vision. Scientific American Library. [1]Archived 2010-12-24 at the Wayback Machine chapter 4, p16
Livingstone, M.; Hubel, D. (1988). "Segregation of form, color, movement, and depth: Anatomy, physiology, and perception". Science. 240 (4853): 740–749. doi:10.1126/science.3283936. PMID3283936.