MROZKOWIAK, Mirosław. The effect of the length, angle, height, and depth of lumbar lordosis on selected features of thoracic spine. Journal of Education, Health and Sport. Online. 23 September 2023. Vol. 19, no. 1, pp. 105-118. [Accessed 27 December 2025]. DOI 10.12775/JEHS.2023.19.01.011.