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2. Z. V. Gordon, Occupational Hygiene and Biological Effect of Microwave Electromagnetic Fields (Meditsina, Moscow, 1966) [in Russian], pp. 11–18.
3. D. A. Ginzburg and M. N. Sadchikova, Biological Effect of Electromagnetic Fields of Radio Frequency Spectrum (Moscow, 1968) [in Russian], pp. 11–18.
4. G. G. Rostovtseva, L. L. Sudonina, I. L. Yakub, et al., “On the Question of Asthenic Conditions in Individuals Exposed in Radio Frequency Fields”, in Occupational Hygiene and Biological Effect of Electromagnetic Waves of Radio Frequencies (Moscow, 1972) [in Russian], pp. 18–19.
5. T. B. Surovikina and I. A. Karash, New in Morphology and Clinical Pathology of Vegetative Nervous System (Leningrad, 1974) [in Russian], pp. 70–76.