Ткаченко / Tkachenko V. В. С. “HR Reaction of Cyclists on Physical Work in Individual Time Trial With Using Different Positions”. Slobozhanskyi Herald of Science and Sport, no. 3(30) (June 30, 2012): 46–49. Accessed November 30, 2024. https://journals.uran.ua/index.php/1991-0177/article/view/22137.