1. Visual perception and the rotating trapezoidal window;Ames;Psychological Monographs,1951
2. Gestalt theory;Asch,1968
3. Some informational aspects of visual perception;Attneave;Psychological Review,1954
4. Symmetry, information and memory for patterns;Attneave;American Journal of Psychology,1955
5. Physical determinants of the judged complexity of shapes;Attneave;Journal of Experimental Psychology,1957