Ivanyuk , Igor, and Tetyana Ivanyuk. “Oak Diseases in the System of Factors That Reduce Productivity”. Forestry, Forest, Paper and Woodworking Industry 43 (December 29, 2017): 79–85. Accessed July 17, 2026. https://forest-woodworking.nltu.edu.ua/index.php/journal/article/view/88.