1. H. Haken: Lectures given at the University of Stuttgart (1988)
2. H. Haken: Information and Self-organization, Springer Ser. Syn. Vol. 40 ( Springer, Berlin, Heidelberg 1988 )
3. H. Haken: Information and Self-organization,cited above
4. For the special case of spin-glasses see:
5. D.H. Ackley, G.E. Hinton, T.J. Sejnowski: A learning algorithm for Boltzmann machines: Cognitive Science 9, 147 —169 (1985)