1. W. G. Walter: The Living Brain (Duckworth, London 1953), reprinted by Pelican Books, Harmondsworth, 1961
2. V. Braitenberg: Vehicles: Experiments in Synthetic Psychology (Bradford Books/The MIT, Cambridge 1984)
3. I. Segev, M. London: Dendritic processing. In: The Handbook of Brain Theory and Neural Networks, 2nd edn., ed. by M.A. Arbib (Bradford Books/MIT Press, Cambridge 2003) pp. 324–332
4. Y. Fregnac: Hebbian synaptic plasticity. In: The Handbook of Brain Theory and Neural Networks, 2nd edn., ed. by M.A. Arbib (Bradford Books/MIT Press, Cambridge 2003) pp. 515–522
5. W. Reichardt: Autocorrelation, a principle for the evaluation of sensory information by the central nervous system. In: Sensory Communication, ed. by W.A. Rosenblith (MIT Press/Wiley, New York, London 1961) pp. 303–317