Sazonov I.Yu., Polozov A.A., Maltseva N.A., Petukhova M.E. Overcoming contradictions in models of key competencies of the system of educational standards and KPI for fitness managers. TPPC [Internet]. 2023 Nov. 4 [cited 2025 Dec. 5];(11):48-51. Available from: http://www.tpfk.ru/index.php/TPPC/article/view/828