TY JOUR TI INVESTIGATION OF THE PECULIARITIES OF IMPROVING THE TACTICS OF ZONE PROTECTION OF HOCKEY PLAYERS AGED 11 -12 KW hockey KW defense KW zone defense KW game zone KW technical and tactical action KW physical qualities JO Scientific notes of P. F. Lesgaft University AU Gindullin, A.R. AU Dayanova, A.R. AU Makina, L.R. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft