Dwulit, Alicja, and Katarzyna Weber-Nowakowska. “The Relationship Between Polyarticular Hypermobility and the Incidence of Injuries in Children Aged 6-10 Years”. Journal of Education, Health and Sport, vol. 8, no. 4, Apr. 2018, pp. 116-28, https://apcz.umk.pl/JEHS/article/view/5411.