00707naa#a2200181#i#450# EN\\bibl\121411 20260701053114.3 1994-4683 20230531b2023####ek#y0engy0150####ca RU COMPARATIVE ANALYSIS OF PHYSICAL FITNESS INDICATORS OF 8-9 YEARS- OLD TENNIS PLAYERS WITH NORMATIVE VALUES OF THE FEDERAL STANDARD OF SPORTS TRAINING FOR THE SPORT TENNIS Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2023 5 с. Journal article local Теннис. Лаун-теннис. 796.342 uchzapiski.lesgaft.spb.ru