Kholodkov, O. V. “Ontogenetic Structure of Allium Ursinum Populations in the Territory of Sumy Geobotanical Region”. Cherkasy University Bulletin: Biological Sciences Series, no. 1 (May 30, 2017): 107–115. Accessed May 12, 2026. https://bio-ejournal.cdu.edu.ua/article/view/1512.