Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Siwerzew, P. 1915. Kurzer Bericht uber die Bekampfung der Borkenkafer in der Oberforsterei Dobetschanskoje. (Gouv. Tschernigow) [In Russian]. Lessnoi Zhurnal 1915:1248-1250.