1. Alexander R.McN., The Gaits of Bipedal and Quadrupedal Animals. Int.J.Robotics Research, vol.3, no.2, pp.49–50, 1984.
2. Arbil M.A., The Metaphorical Brain. John Wiley, 1972.
3. Beer R.D., Intelligence as Adaptive Behavior. An Experiments in Computational Neuroethology,Academic Press Inc, 1990.
4. Brooks R.A, Flynn A.M., Fast, Cheap and Out of Control: A Robot Invasion of the Solar System. J. of the British Interplanetary Society, vol. 42, pp. 478–485. 1989.
5. Brooks R.A. and Stein L.A., Building Brains for Bodies, Autonomous Robots. volt. pp.7–25, 1994.