1. É. I. Arshavskaya, Byull. Éksperim. Biol. i Med., No. 2, 120 (1950).
2. T. A. Grigor'eva, Innervation of the blood Vessels [in Russian], Moscow (1954).
3. E. Gutmann and I. Hajek, in: Central and Peripheral Mechanisms of Nervous Activity [in Russian], Erevan (1966), p. 175.
4. N. G. Kolosov, Innervation of the Internal Organs and Cardiovascular System [in Russian], Moscow (1954).
5. M. P. Kul'vanovskii and V. N. Margolin, in: Nervous and Humoral Mechanisms of Reflex Responses [in Russian], Minsk (1968), p. 38.