Бойченко Наталя Валентинівна (Natalya Boychenko). “Indicators Technology Competitive Activities of Varying Skill Karate Style «kyokushin»”. Slobozhanskyi Herald of Science and Sport, no. 5(43) (October 31, 2014): 7–10. Accessed July 4, 2024. https://journals.uran.ua/index.php/1991-0177/article/view/28659.