1. A. V. Val'dman, É. É. Zvartau, and M. M. Kozlovskaya, The Psychopharmacology of Emotions [in Russian], Moscow (1976).
2. A. V. Val'dman and M. M. Kozlovskaya, in: A Neurophysiological Approach to the Analysis of Intraspecific Behavior [in Russian], Moscow (1976), p. 74.
3. A. D. Esikov, in: Methods of Investigation of Some Hormones and Mediators [in Russian], Moscow (1965), pp. 100?105.
4. I. E. Zimakova, Farmakol. Toksikol., No. 6, 684 (1977).
5. M. M. Kozlovskaya, in: The Psychopharmacology of Emotional Stress and of Zoosocial Interaction [in Russian], Leningrad (1975), p. 98.