Demiray, S. , Pintado, M. , Castro, P. (2009), 'Evaluation of Phenolic Profiles and Antioxidant Activities of Turkish Medicinal Plants: Tiliaargentea, Crataegi Folium Leaves and Polygonum bistorta Roots', World Academy of Science, Engineering and Technology, Open Science Index 30, International Journal of Pharmacological and Pharmaceutical Sciences, 3(6), 74 - 79.