1. Light source position in the perception of object shape;Berbaum;Perception,1983
2. Sensation and perception in the history of experimental psychology;Boring,1942
3. On the optical illusion of the conversion of cameos into intaglios, and of intaglios into cameos, with an account of other analogous phenomena;Brewster;Edinburgh Journal of Science,1826
4. Shape from shadows;Cavanagh;Journal of Experimental Psychology: Human Perception and Performance,1989
5. PsyScope: a new graphic interactive environment for designing psychology experiments;Cohen;Behavioral Research Methods, Instruments & Computers,1993