@article{2023preparation,
author={, .. and , ..},
title={PREPARATION FOR COMPETITIONS FOR 18-20-YEAR-OLD RUNNERS SPECIALIZING IN MARATHON},
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={456-462},
volume={},
issue={6},
}