Wilczyński, J., P. Karolak, and S. Janecka. “Body Composition and SEMG Amplitude of the Spine Rectifier in Children With Scoliotic Lesions”. Journal of Education, Health and Sport, vol. 8, no. 12, Dec. 2018, pp. 600-12, https://apcz.umk.pl/JEHS/article/view/6418.