1. König, A., and Windisch, M., ?The effect of continuous darkness on the circadian rhythm of the ADH content of the neurohypophysis and on urine output in male rats,? Pflügers Arch.,155, 56, Suppl. (1975).
2. Martin, D., and Luppa, H., ?Untersuchungen zum circadianen Sekretionszyklus der neurosekretorischen Kerngebiete der Maus,? Acta Zool.,56, No. 4, 239 (1975).
3. Parin, V. V., Kosmolenskii, F. P., and Dushkov, B. A., Space Biology and Medicine [in Russian], Prosveschenie, Moscow (1970).
4. Popovichenko, N. V., The Role of the Hypothalamic Neurosecretory System in Adaptive Reactions of the Organism [in Russian], Naukova Dumka, Kiev (1973), p. 108.
5. Popovichenko-Dasyuk, N. V., and Gladchenko, L. S., ?Diurnal activity of the neurosecretory cells of anterior hypothalamic nuclei,? in: Physiology and Biochemistry of Functional Systems of the Organism [in Russian], Part 2, Naukova Dumka, Kiev (1968), pp. 84?87.