@article{Nikitushkin2019normalization,
author={Nikitushkin, V.G. and Min'kov, P.E.},
title={Normalization of physical loads in training with somatically weakened children of 11-13 years, exercising in sports and health-improving groups of martial arts},
journal={Journal of Pedagogical Studies},
publisher={INFRA-M Academic Publishing LLC.},
year={2019},
pages={63-67},
volume={4},
issue={5},
}