L. S. RAMÍREZ ARISTIZABAL, A. ORTÍZ, M. F. RESTREPO-ARISTIZABAL, and J. F. SALINAS-VILLADA, “Comparative study of the antioxidant capacity in green tea by extraction at different temperatures of four brands sold in Colombia”, Vitae, vol. 24, no. 2, pp. 132–145, Nov. 2017.