POROHNYACH, I. V. FEATURES OF TREE MORTALITY AFTER TENDING FELLING IN SPRUCE STANDS IN NOVGOROD-SEVERSKIY POLISSYA. Forestry and Forest Melioration, [S. l.], n. 131, p. 40–46, 2017. Disponível em: http://forestry-forestmelioration.org.ua/index.php/journal/article/view/33. Acesso em: 15 apr. 2021.