1. Physiologie der Netzhaut;Aubert,1865
2. Bezold's colour mixture effect;Burnham;American Journal of Psychology,1953
3. The relation between extent and contrast in the liminal stimulus for vision;Cobb;Journal of Experimental Psychology,1927
4. Subjective contour and apparent depth;Coren;Psychological Review,1972
5. Visual perception;Cornsweet,1970