LOBASYUK, B. A., BODELAN, M. and ZAMKOVAYA, A. V. Influence of EEG rhythms on extraversion-introversion indicators and smiles test. Journal of Education, Health and Sport. Online. 31 March 2021. Vol. 11, no. 3, pp. 200-211. [Accessed 9 April 2026]. DOI 10.12775/JEHS.2021.11.03.020.