Koplyk, Ya.V. “STEPPE PHYTOCOENOSES OF UKRAINE: SPESIFICS AND HISTORY OF THE STUDY”. Bulletin of Sumy National Agrarian University. The series: Agronomy and Biology 49, no. 3 (January 20, 2023): 40-48. Accessed July 3, 2024. https://snaubulletin.com.ua/index.php/ab/article/view/732.