Shevchyk, V. L., O. V. Spriahailo, O. A. Spriahailo, and D. V. Shyriaeva. “Spreading and Cenotical Features of Allium Ursinum L. At the Left-Bank Part of Cherkasy Region”. Cherkasy University Bulletin: Biological Sciences Series, no. 2, Dec. 2017, pp. 93-100, https://bio-ejournal.cdu.edu.ua/article/view/2062.