Джим, Віктор, and Людмила Канунова. 2018. “Impact of Physical Activity on the Level of Development of the Physical Qualities of Athletes 12–15 Years Old, Involved in Kettlebell Lifting at the Stage of Initial Training”. Slobozhanskyi Herald of Science and Sport, no. 6(68) (December):39-43. https://doi.org/10.15391/snsv.2018-6.006.