1. M. V. Ugryumov, Neurodegenerative Diseases: Fundamental and Applied Aspects, Ed. by M.V. Ugryumov (Nauka, Moscow, 2010) [in Russian].
2. K. Brockmann and D. Berg, Diagnosis of Parkinson’s Disease. Parkinson Disease and Other Movement Disorders, Ed. by E. C. Wolters and C. R. Baumann (Int. Ass. of Parkinsonism and Related Disorders, VU Univ. Press, Amsterdam, 2014), p. 229.
3. J. A. Ganglberger, Electroenceph. Clinical Neurophys. 13 (1), 82 (1961).
4. R. Soikkeli, J. Partenen, H. Soininen, et al., Electroencephal. Clinical Neurophys. 79 (3), 159 (1991).
5. L. Pezard, R. Jech, and E. Ruzicka, Clinical Neurophys. 112 (1), 38 (2001).