KAWA, Michał, IDZIK, Kamil, GACZOŁ , Agnieszka Anna, KOPCIŃSKA , Paulina, PIOTROWSKA , Gabriela, GRZYBOWSKA, Dominika, URBAŚ , Aleksander, KILIAN, Tomasz, KURNIK , Michał, GRZYB-KURNIK , Weronika, MORTKA , Magdalena and BEDNARZ , Hubert. Caffeine Tolerance in Endurance Sports: Does Habitual Intake Reduce the Effectiveness of Acute Supplementation?. Quality in Sport. Online. 8 August 2026. Vol. 66, p. 74008. [Accessed 9 August 2026]. DOI 10.12775/QS.2026.66.74008.