D. A. Camfield, C. Stough, J. Farrimond, and A. B. Scholey, «Acute Effects of Tea Constituents L-theanine, Caffeine, and Epigallocatechin Gallate on Cognitive Function and Mood: A Systematic Review and Meta-analysis». Nutrition Reviews 72, no. 8 (Aug. 2014): 507–522.
