Khvatskaya, E. ., O. . Korshunova, and A. . Shtukkert. “FAIR GROUP NORMS AS A SOCIO-PSYCHOLOGICAL CRITERION OF A HEALTHY SPORTS ENVIRONMENT”. 2023. Theory and Practice of Physical Culture, no. 1, Apr. 2023, pp. 39-41, http://tpfk.ru/index.php/TPPC/article/view/509.