E. S. Bulynko, “Psychophysiological training with biofeedback: dynamics of anxiety level of the athletes”, Журнал Белорусского государственного университета. Философия. Психология, no. 1, pp. 124–130, Apr. 2022, Accessed: Jul. 18, 2026. [Online]. Available: https://journals.bsu.by/index.php/philosophy/article/view/3906