V. RAO, CHIRRAVURI, et al. “Antimicrobial, Antioxidant and Cytotoxic Constitutents from Roots of Rumex Crispus Linn‡ ”. Asian Journal of Chemistry, vol. 19, no. 4, Mar. 2010, pp. 2764-72, https://asianpubs.org/index.php/ajchem/article/view/13375.