Khudolii, O. M., O. V. Ivashchenko, S. S. Iermakov, V. Yu. Veremeenko, and A. O. Lopatiev. 2019. “Motor Abilities: Identification of Development Level in Boys Aged 12-14”. Physical Education Theory and Methodology 19 (3):139-47. https://doi.org/10.17309/tmfv.2019.3.05.