Ustskiy, I. M., S. I. Musienko, and P. A. Nykytyuk. 2018. “THE SPREAD OF PATHOLOGICAL PROCESSES IN UKRAINIAN FORESTS FOR THE PERIOD 1991-2009”. Forestry and Forest Melioration, no. 127 (February):193-203. http://forestry-forestmelioration.org.ua/index.php/journal/article/view/176.