TsurkanО. О., and E. P. Delyan. “Component Composition Essential Oils Herbs Sonchus Oleraceus (Sonchus Oleraceus L.) Using Gas Chromatography Mac-Detection”. Farmatsevtychnyi Zhurnal, no. 3, Sept. 2018, pp. 64-68, https://pharmj.org.ua/index.php/journal/article/view/219.