Balamutova, N.M., and S.V. Shyryaeva. “Study of Special Performance and Volume Training Loadings at Swimmers in the Year Preparation”. Physical Education of Students 18, no. 1 (February 28, 2014): 8–12. Accessed July 16, 2026. https://www.sportedu.org.ua/index.php/PES/article/view/215.