CZERNY, Izabela, DANISZEWSKI, Szymon, PLUTA, Wioleta, MILANIUK, Roksana, DRZEWIECKA, Aleksandra, SURÓWKA, Beata, TYLEC, Piotr, TALAROWSKI, Krzysztof, ŚCIUBAK, Arkadiusz, PACEK, Aleksandra and BRYL, Jakub. Caffeine Sources and Exercise Performance: A Narrative Review of Anhydrous Caffeine, Coffee, and Energy Drinks. Quality in Sport. Online. 22 August 2026. Vol. 70, p. 74595. [Accessed 30 October 2026]. DOI 10.12775/QS.2026.70.74595.