00732naa#a2200169#i#450# EN\\bibl\111777 20260304202637.3 1994-4683 20241129b2024####ek#y0engy0150####ca RU The need to introduce the coefficient of complexity of technical elements in snowboard competitions in the discipline of big air Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2024 4 с. Journal article local Лыжный спорт. Бег на лыжах. Лыжные гонки. Лыжный кросс. 796.92 Vlasenko Pavel Pavlovich uchzapiski.lesgaft.spb.ru