00717naa#a2200169#i#450# EN\\bibl\109865 20251222220025.1 1994-4683 20250913b2025####ek#y0engy0150####ca RU Model platforms that ensure the engagement of schoolchildren in systematic sports in the regions of Russia Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2025 4 с. Journal article local Содержание спортивных сооружений, игровых площадок. 796.028 Sedochenko Svetlana Vladimirovna uchzapiski.lesgaft.spb.ru