Lutkova N.V., Makarov Yu.M., Lutkov V.F., Dakshevich N.V. Innovative aspects of varieties of serve in modern men’s volleyball. TPPC [Internet]. 2024 Aug. 20 [cited 2025 Feb. 2];(7):6-8. Available from: http://tpf1610220.nichost.ru/index.php/TPPC/article/view/1061