1. H. B. Barlow: Quart. J. of Exp. Psychol. 37A, 121–145 (1983)
2. J. Konorski: Integrative activity of the brain, (University of Chicago Press, Chicago 1967)
3. O. D. Creutzfeldt: Cortex Cerebri, (Springer, Berlin 1983)
4. M. A. Arbib: The metaphorical brain, (Wiley, New York 1972)
5. E. Basar, H. Flohr, H. Haken, A. J. Mandell (Eds.): Synergetics of the brain, (Springer, Berlin 1983) H. Haken (Ed.): Complex systems — operational approaches in neurobiology, physics, and computers, (Springer, Berlin 1985)