1. Boulter, J. F. Technical comment.Science. 1977,198, 960–961.
2. Campbell, F. W. Transmission of spatial information through the visual system.Neurosciences Third Study Program, 1974, 95–103.
3. Ginsburg, A. P. Psychological correlates of a model of the human visual system.Proceedings: 1971 National Aerospace Electronics Conference (NAECON), Dayton, Ohio, 1971, 283-290.
4. Ginsburg, A. P. Pattern recognition techniques suggested from psychological correlates of a model of the human visual system.Proceedings: 1973 National Aerospace Electronics Conference (NAECON), Dayton, Ohio, 1973, 309–316.
5. Ginsburg, A. P. Is the illusory triangle real or imaginary?Nature, 1975,257, 210–220.