1. Computers and Intractability: A Guide to the Theory of NP-Completeness;Garey,1979
2. Perceptrons;Minsky,1969
3. “Arbitrary nonlinearity is sufficient to represent all functions by neural networks: a theorem,”;Kreinovich;Neural Networks,1991
4. The performance figures of the electronic hardware were taken from J. Alspector, “Parallel implementations of neural networks: electronics, optics, biology,” in Technical Digest of 1991 Topical Meeting on Optical Computing, Optical Society of America (1991).
5. “Optical network for real time face recognition,”;Li;Appl. Opt.,1993