Гребенюк, Олег. “Increasing the Level of Preparedness of 400 M Hurdles Runners by Means of Hypoxic Exposure As the Basis for Achieving a Sporting Result”. Slobozhanskyi Herald of Science and Sport, no. 6(68) (December 31, 2018): 59–64. Accessed May 5, 2024. https://journals.uran.ua/index.php/1991-0177/article/view/152911.