HELUTA, V.P., and S.O. VOYTYUK. 2005. “Species of Genus Leveillula G. Arnaud (Erysiphales): Distribution in Ukraine and Key of Identification”. CHORNOMORSKI BOTANICAL JOURNAL 1 (1): 105-16. https://www.cbj.kspu.edu/index.php/cbj/article/view/780.