1. Baddeley, R.J. 1994. The Correlational Structure of Natural Images. Submitted to Pyserological Review.
2. Galland, C.C. 1993. The Limitations of Deterministic Boltzmann Machine Learning. Network, 4, 355–380.
3. Hinton, G, & Sejnowski, T. 1983. Optimal Perceptual Inference. Proceedings of the IEEE Computer Society Conference on Computer Vision and Patern Recognition, 448–453.
4. Kohonen, T. 1982. Self-Organized Formation of Topologically Correct Feature Maps. Biological Cybernetics, 43.
5. Laughlin, S. 1981. A Simple coding Procedure Enhances Information Capacity. Zeitschrift fur Naturforschung, Section С-Bio sciences, 36, 910–912.