VAKARENKO, L.P., and D.V. DUBYNA. 2006. “Phytocoenofund’s Rarities in Fruticose, Fruticulose and Herbaceous Vegetation of Southern Ukraine”. CHORNOMORSKI BOTANICAL JOURNAL 2 (1): 108-15. https://www.cbj.kspu.edu/index.php/cbj/article/view/740.