KERCHEV, I.; BYKOV, R.; ILINSKY, Y. Expansion of the secondary range of Polygraphus proximus Blandford (Coleoptera; Curculionidae, Scolytinae): invasion of Khamar-Daban mountains (Republic of Buryatia). Acta Biologica Sibirica, v. 9, p. 1–11, 27 Jan. 2023.