Мудрик [Ivan Mudryk] І. П., Федіна [Natalia Fedyna] Н. І., and Хабалюк [Natalia Habalyuk] Н. Р. “Temporal Patterns of Exercise Equipment Competitive Athletes in Karate-Do at Different Stages of Athletic Training”. Slobozhanskyi Herald of Science and Sport, no. 2(35), Apr. 2013, pp. 67-70, https://journals.uran.ua/index.php/1991-0177/article/view/18314.