Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Butovitsch, V. v. 1947. Redogorelse for Flygbekamphigskampanjen mot tallmataren under aren 1944-1945 [Report on the campaign for aerial control of the pine looper (Bupalus piniarus) in 1944-1945]. Medd. Skogsforskn-Inst., Stockholm 35:9.