KOWAL, Alicja and SPOZOWSKI, Karol. Effectiveness of stretching exercises in conservative therapy of plantar fasciitis (PF). Journal of Education, Health and Sport. Online. 9 September 2022. Vol. 12, no. 9, pp. 621-631. [Accessed 27 December 2025]. DOI 10.12775/JEHS.2022.12.09.075.