1. L. S. Kalinichenko, E. V. Koplik, and S. S. Pertsov, Bull. Exp. Biol. Med., 156, No. 4, 441-444 (2013).
2. E. V. Koplik, Vestn. Nov. Med. Tekhnol., 9, No. 1, 16-18 (2002).
3. S. V. Magaeva and S. G. Morozov, Neuroimmunophysiology [in Russian], Moscow (2005).
4. S. S. Pertsov, Melatonin in Total Systems Mechanisms of Emotional Stress [in Russian], Moscow (2011).
5. K. V. Sudakov, Selected Papers, Vol. 3, Emotions and Emotional Stress [in Russian], Moscow (2012).