1. German through pictures. New York: Washington Square Press, 1959.
2. A survey of automatic reading techniques. Report No. 5643. Washington, D. C.: National Bureau of Standards, 1961.
3. The development of perception and language. In and (Eds.), Computer simulation of personality. New York: Wiley, 1963. Pp. 231–266. (a)
4. "Pattern recognition" computers as models for form perception.
5. & Computer simulations of a perceptual learning model for sensory pattern recognition, concept formation, and symbol transformation. Proceedings of the IFIP Congress. Amsterdam: North Holland Publishing Co., 1963. Pp. 413–418.