1. I. V. Viktorov, in: Functional and Structural Bases of Activity of Brain Systems and Mechanisms of Brain Plasticity [in Russian], No. 5, Moscow (1976), p. 78.
2. I. V. Viktorov and L. G. Khaspekov, Neirofiziologiya, No. 4, 384 (1976).
3. L. G. Khaspekov and I. V. Viktorov, in: Functional and Structural Bases of the Activity of the Brain System and Mechanisms of Brain Plasticity [in Russian], No. 4, Moscow (1975), p. 404.
4. C. Allerand, Exp. Neurol.,25, 482 (1969).
5. S. Crain and E. Peterson, Science,188, 275 (1975).