Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Zajac, S. 1966. Zwalczanie kornikow swierkowych na ternie OZLP Krakow w latach 1945-1965 [Control of spruce bark beetles in the Cracow forest areas in 1945-1965] . Las Polski 40:11-12.