00605naa#a2200169#i#450# EN\\bibl\109534 20251225074842.4 1994-4683 20250913b2025####ek#y0engy0150####ca RU Effectiveness of method of improving technical skills of elite long jumpers Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2025 4 с. Journal article local с разбега. 796.431.22 Tatarinov Ivan Dmitrievich uchzapiski.lesgaft.spb.ru