1. B. V. Aleshin, ?The APUD system,? in:Current Problems of Contemporary Endocrinology (Neurobiological Aspects) [in Russian], Nauka, Moscow (1981), pp. 6?24.
2. Kh. Kurbanov,The Structure and Functions of Melanosomes [in Russian], Ilim, Ashkhabad (1985).
3. P. A. Motavkin, ?The effector innervation of melanophores of the arteries of the base of the brain,?Byul. Éksperim. Biologii i Meditsiny 81, No. 2, 244?246 (1976).
4. P. A. Motavkin, L. D. Markina-Palashchenko, and G. G. Bozhko,The Comparative Morphology of the Vascular Mechanisms of Cerebral Blood Circulation in Vertebrates [in Russian], Nauka, Moscow (1981).
5. P. A. Motavkin and V. M. Chertok,Histophysiology of the Vascular Mechanisms of Cerebral Blood Circulation [in Russian], Meditsina, Moscow (1980).