Mrozkowiak, M., M. Sokołowski, M. Posłuszny, and A. Kaiser. “Sexual Dimorphism of the Incidence of Significant Relationships Between Selected Foot Parameters and Trunk Parameters in Children Aged 7 – 13 Years”. Journal of Education, Health and Sport, vol. 8, no. 2, Feb. 2018, pp. 334-48, https://apcz.umk.pl/JEHS/article/view/5335.