Geçibesler, İbrahim H. et al. 2017. Antioxidant potencies and chemical compositions of essential oils of two endemic species grow in Turkey: Astragalus oocephalus subsp. stachyophorus and Astragalus sericans. Progress in Nutrition. 19, 1-S (Oct. 2017), 60–67. DOI:https://doi.org/10.23751/pn.v19i1-S.5364.