Penkovska, L. V. “Morphometric Parameters of Convallaria Majalis L. In the Conditions of Different Phytocenoses in the Yampil District of Sumy Region”. Cherkasy University Bulletin: Biological Sciences Series, no. 1 (June 29, 2019): 59–66. Accessed May 16, 2026. https://bio-ejournal.cdu.edu.ua/article/view/3365.