LOBASYUK, B. A., BODELAN, M. & ZAMKOVAYA, A. V. Influence of EEG rhythms on extraversion-introversion indicators and smiles test. Journal of Education, Health and Sport [online]. 31 March 2021, T. 11, nr 3, s. 200–211. [accessed 8.6.2023]. DOI 10.12775/JEHS.2021.11.03.020.