Porohnyach, I. V. 2017. “FEATURES OF TREE MORTALITY AFTER TENDING FELLING IN SPRUCE STANDS IN NOVGOROD-SEVERSKIY POLISSYA”. Forestry and Forest Melioration, no. 131 (December):40-46. http://forestry-forestmelioration.org.ua/index.php/journal/article/view/33.