Lunachevskyy, L. S., P. B. Tarnopilskyy, M. G. Rumyantsev, and V. P. Chygrynets. 2018. “STATE, PRODUCTIVITY, MERCHANTABILITY, AND ASSORTMENT STRUCTURE OF NATURAL OAK STANDS IN SUMY REGION”. Forestry and Forest Melioration, no. 128 (February):39-46. http://forestry-forestmelioration.org.ua/index.php/journal/article/view/140.