00738naa#a2200217#i#450# EN\\bibl\118683 20260507013545.4 1994-4683 20230428b2023####ek#y0engy0150####ca RU LOAD INTENSITY OF PHYSICAL EXERCISES DURING TENNIS CLASSES WITH 4-5-YEAR-OLD CHILDREN Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2023 6 с. Journal article local Теннис одиночный. 796.342.082.1 Dmitrenko L A Datsenko S S Kostyukov V V Datsenko A A Babak E YU uchzapiski.lesgaft.spb.ru