@article{Ivchenko2023improving,
author={Ivchenko, E.V. and Fedorov, P.O.},
title={IMPROVING THE EFFECTIVENESS OF THE FIRST SWIMMING MOVEMENTS IN 13-14- YEAR-OLD SWIMMERS},
journal={Scientific notes of P. F. Lesgaft University},
publisher={National State University of Physical Education, Sports and Health named after P.F. Lesgaft},
year={2023},
pages={183-186},
volume={0},
issue={9},
}