Simultaneous quantification of bergenin, catechin, and gallic acid from Bergenia ciliata and Bergenia ligulata by using thin-layer chromatography. K. Dhalwal, V.M. Shinde, Y.S. Biradar and K.R. Mahadik, Journal of Food Composition and Analysis, Volume 21, Issue 6, September 2008, pp. 496-500, DOI:10.1016/j.jfca.2008.02.008
