@article{Sinicyn2026development,
author={Sinicyn, D.K. and Shamrai, L.V.},
title={Development of punch stiffness in qualified boxers at the special preparatory stage},
journal={Scientific notes of P. F. Lesgaft University},
publisher={National State University of Physical Education, Sports and Health named after P.F. Lesgaft},
year={2026},
pages={99-103},
volume={0},
issue={6},
}