S. Demiray and  M. E. Pintado and  P. M. L. Castro,  Evaluation of Phenolic Profiles and Antioxidant Activities of Turkish Medicinal Plants: Tiliaargentea, Crataegi Folium Leaves and Polygonum bistorta Roots.   journal   = {International Journal of Pharmacological and Pharmaceutical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    June 2009, vol. 30(6). 74 - 79
    [viewed 03 December 2021]. Available from: https://publications.waset.org/pdf/10348.