Nagovitsyn, R.S., A.A. Miroshnichenko, D.R. Merzlyakova, and G.Z. Faizullina. “Interrelation of Mental ‘burn Out’ Level and Psychological Health in Athletes With Different Qualification”. Physical Education of Students 22, no. 6 (December 25, 2018): 327–331. Accessed August 3, 2026. https://www.sportedu.org.ua/index.php/PES/article/view/728.