Turbasova, N., A. Bulygin, I. Revnivykh, N. Karpov, and A. Elifanov. “ANXIETY LEVEL AND PARAMETERS OF THE CARDIOVASCULAR SYSTEM IN ATHLETES OF VARIOUS QUALIFICATIONS”. Human. Sport. Medicine, Vol. 19, no. 4, Jan. 2020, pp. 14-19, doi:10.14529/hsm190402.