Siminska, Joanna, Krystyna Nowacka, Zygmunt Siedlecki, and Wojciech Hagner. “Overload Pain But Root Differentiation Discomfort in the Lumbar Spine”. Journal of Education, Health and Sport 7, no. 6 (June 20, 2017): 323–330. Accessed June 29, 2025. https://apcz.umk.pl/JEHS/article/view/4547.