1. A. A. Airapetyants and O. V. Gevorkyan, Zh. Évol. Biokhim. Fiziol.,13, No. 3, 391 (1977).
2. É. B. Arushanyan and Yu. A. Belozertsev, Neirofiziologiya,4, No. 4, 115 (1972).
3. O. G. Baklavadzhyan and E. G. Asvatsatryan, Fiziol. Zh. SSSR,62, No. 2, 160 (1976).
4. A. Yu. Budantsev, Monoaminergic Brain Systems [in Russian], Nauka, Moscow (1976).
5. L. L. Voronin, Zh. Vyssh. Nerv. Deyat.,14, No. 5, 920 (1964).