@article{Danilova2025improving,
author={Danilova, G.R. and Konovalov, I.E.},
title={Improving the execution of the upper direct ball feed by qualified volleyball players},
journal={Scientific notes of P. F. Lesgaft University},
publisher={National State University of Physical Education, Sports and Health named after P.F. Lesgaft},
year={2025},
pages={108-112},
volume={0},
issue={8},
}