Папка, О. С. “SOME QUESTIONS OF GERMINATION’S BIOLOGY OF ASCLEPIAS SYRIACA L. SYS. A. CORNUTI DECNE”. Scientific Progress & Innovations, no. 1-2 (June 26, 2015): 172–173. Accessed December 5, 2025. https://journals.pdaa.edu.ua/visnyk/article/view/1010.