Segal I.V., Deryabina M.A., Kiryakova O.S., and Nevyantseva Yu.S. “Implementation of an Individually Differentiated Approach in Training Runners”. Theory and Practice of Physical Culture, no. 3, Mar. 2024, pp. 22-24, http://tpfk.ru/index.php/TPPC/article/view/967.