Пирцхалава-Карпова, Н.Р., Карпов, А.А., Козловский, Е.Е. and Грищенко, М.Ю. 2021. Protection of Spruce Forests from Outbreaks of Ips typographus (Review). Lesnoy Zhurnal (Russian Forestry Journal). 4 (Jul. 2021), 55–67. DOI:https://doi.org/10.37482/0536-1036-2021-4-55-67.