TY  JOUR
TI  SPEED DEVELOPMENT 13-14YEAR OLD BOXERS
KW  boxing
KW  methodology
KW  speed abilities
KW  pedagogical experiment
KW  competitions
JO  Scientific notes of P. F. Lesgaft University
AU  Gorelkin, S.I.
PY  2023
IS  0
PB  National State University of Physical Education, Sports and Health named after P.F. Lesgaft