R. Acar, A. Unver, D. Arslan, M. Musa Ozcan, and A. Gunes, “Effect of Plant Parts and Harvest Period on Rutin, Quercetin, Total Phenol Contents and Antioxidant Activity of Buckwheat (Fagopyrum esculentum Möench) Cultivated in Turkey”, ajc, vol. 23, no. 7, pp. 3240–3242, Mar. 2011.