1. See e.g. Physics of neural networks. Hemmen, van J.L., Domany, E., Schulten, K. (eds.). Berlin, Heidelberg, New York: Springer Verlag (to be published)
2. A review gives Binder, K., Young, A.P.: Rev. Mod. Phys.58, 801 (1986)
3. Kirkpatrick, S., Gelatt, C.D., Vecchi, M.P.: Science220, 671 (1983)
4. Spitzner, P., Kinzel, W.: Z. Phys. B ? Condensed Matter74, 539 (1989)
5. Hertz, J.A. Grinstein, G., Solla, S.A.: In: Neural networks for computing. Deuker, J.S. (ed.). AIP Conf. Proc.151, 213 (1986)