KOŚCIOŁEK, Dawid, URBAŚ, Michał, KĘPCZYK, Martyna, KOŚCIOŁEK, Aleksandra, SUROWIECKA, Kaja, MISIAK, Jakub, OJDANA, Miłosz, SZALBOT, Konrad, TOKARSKI, Mikołaj and MARCZAK, Natalia. The influence of available oral collagen supplementation on the function of joints and skin. Journal of Education, Health and Sport. Online. 20 February 2024. Vol. 61, pp. 214-229. [Accessed 12 April 2026]. DOI 10.12775/JEHS.2024.61.014.