@article{Ovchinnikov2020hobbyhorses:,
author={Ovchinnikov, Y.D. and Stoylov, A.Y.},
title={Hobbyhorses: New Approaches in the Physical Activity of Children and Adolescents},
journal={Scientific Research and Development. Socio-Humanitarian Research and Technology},
publisher={INFRA-M Academic Publishing LLC.},
year={2020},
pages={50-54},
volume={9},
issue={1},
}