Khudolii, O. M., Ivashchenko, O. V., Iermakov, S. S., Veremeenko, V. Y., & Lopatiev, A. O. (2019). Motor Abilities: Identification of Development Level in Boys Aged 12-14. Physical Education Theory and Methodology, 19(3), 139–147. https://doi.org/10.17309/tmfv.2019.3.05