1. Aslanova, I. F., Joffe, M. E., and Samoilov, M. I.: M.D.D. (Russian), Moscow, 1966, p. 222.
2. Asratyan, E. A.: Brain Reflexes (Russian), Moscow, 1966.
3. Asratyan, E. A.:Higher Nervous Activity,16: 577, 1966.
4. Asratyan, E. A.: Nervous Mechanisms of Motor Activity (Russian), 1966, p. 329.
5. Asratyan, E. A.: Brain Mechanisms and Learning, Oxford, 1961, p. 95.