1. Bledsoe, W. W., I, Browning, "Pattern Recognition and Reading by Machine." Proc. Eastern Joint Computer Conf., Boston, Mass., pp. 225–232, 1959.
2. Aleksander, I., W. V. Thomas., P. A. Bowden, "WISARD, a Radical Step Forward in Image Recognition", Sensor Review, Vol. 4, No. 3, pp 120–124.
3. Wilson, M. D., "Adaptive Windows: Edges, Stereopsis and Stripes", Pattern Recognition Letters, No. 4, 1986, pp351–358.
4. Ullamnn, J. R.,, "Experiments with the N Tuple Method of Pattern Recognition", Trans. IEEE Computers C-18 (12), pp 1135–1137, 1969.
5. Austin, J., "The Design and Application of Associative Memories for Scene Analysis", PhD, Department of Electrical Engineering, Brunel University, August 1986.