Askin, H., Yilmaz, B., Bakirci, S. and Ayar, A. (2018) “Simultaneous determination of α-amyrin and β-sitosterol in Centranthus longiflorus Stev. Subsp. longiflorus Stev and Iris taochia Woronow ex Grossh by GC-MS method”, Progress in Nutrition, 20(1-S), pp. 209–217. doi: 10.23751/pn.v20i1-S.6744.