Довгаль, Є.О., Гур’єва, І.Г., Кисличенко, В.С. and Журавель, І.О. 2016. Identification and assay of steroid compounds in narrow-leaved catoptric raw material. ScienceRise: Pharmaceutical Science. 3 (3) (Oct. 2016), 4–7. DOI:https://doi.org/10.15587/2519-4852.2016.79473.