@article{Shpet2019health-saving,
author={Shpet, V.V. and Ovchinnikov, Y.D. and Yakunina, V.A.},
title={Health-saving education as a factor of additional education of children},
journal={Journal of Natural Sciences Research},
publisher={INFRA-M Academic Publishing LLC.},
year={2019},
pages={36-41},
volume={4},
issue={4},
}