СОЛОДОВНИКОВА, М. В. Peculiarities of Flexibility Development in Middle Schoolers. Physical Education Theory and Methodology, [S. l.], n. 3, p. 17–24, 2015. DOI: 10.17309/tmfv.2015.3.1144. Disponível em: https://www.tmfv.com.ua/journal/article/view/1144. Acesso em: 6 aug. 2026.