00806naa#a2200205#i#450# EN\\bibl\111506 20260115184323.4 1994-4683 20250913b2025####ek#y0engy0150####ca RU Increasing the reliability of the performance of competitive programs in group exercises of rhythmic gymnastics Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2025 5 с. Journal article local Художественная гимнастика. 796.412.2 Malneva Alina Sergeevna Artyuh Dar'ya Vasil'evna Pelenicina Ekaterina Dmitrievna Sirotina Ekaterina Sergeevna uchzapiski.lesgaft.spb.ru