Казанцева [Kazantseva A.] А. В. (2012) “Individual approach and differentiation as the main organizational principles of physical education of children with poor health”, Slobozhanskyi Herald of Science and Sport, (4(31), pp. 7–11. Available at: https://journals.uran.ua/index.php/1991-0177/article/view/21903 (Accessed: 23December2024).