Semenova, G.I., I.V. Erkomayshvili, and A.V. Solomyannyy. “Analysis of the Physical Fitness of Civil Aviation Pilots Based on Heart Rate Variability Research”. Theory and Practice of Physical Culture, no. 12 (January 14, 2026): 36–39. Accessed January 23, 2026. http://tpfk.ru/index.php/TPPC/article/view/1537.