1. Angel, A., Magni, F., Strata, P.: The excitability of optic nerve terminals in the lateral geniculate nucleus after stimulation of visual cortex. Arch. ital. biol. 105, 104?117 (1967)
2. Anninos, P.A., Beek, B., Csermely, T.J., Harth, E.M. Pertile, G.: Dynamics of neural structures. J. theor. Biol. 26, 121?148 (1970)
3. Brooks, B., Jung, F.: Neuronal physiology and the visual cortex. In: Handbook of sensory physiology Vol. VII/3 Part B, pp. 325?440. Berlin-Heidelberg-New York: Springer 1973
4. Chung, S.H., Raymond, S.A., Lettvin, J.Y.: Multiple meaning in single visual units. Brain Behav. Evol. 3, 72?101 (1970)
5. Cragg, B.G., Temperley, H.N.V.: The organization of neurones: a cooperative analogy. Clin. Neurophysiol. 6, 85?92 (1954)