Wójciak-Kosior, Magdalena, Ireneusz Sowa, Ryszard Kocjan, and Ewelina Jurgas. 2012. “Investigation of Triterpenic Acids by TLC Method in Reversed-Phase System”. Current Issues in Pharmacy and Medical Sciences 24 (2): 113-20. https://czasopisma.umlub.pl/curipms/article/view/3012.