Lavrichenko V.V., Kalinina I.N., Grigoryan M.R., and Deb M.M. “Optimization of the Methodology for Assessing the Specific Endurance of Football Players”. Theory and Practice of Physical Culture, no. 7 (September 6, 2025): 7–10. Accessed February 5, 2026. http://tpf1610220.nichost.ru/index.php/TPPC/article/view/1392.