Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Lekander, B. 1972b. Ett massupptradanse av granbarkborren i Gastrikland 1945-1952. [A massive outbreak of Ips typographus in Gastrikland, central Sweden, in 1945-1952]. Skogshogkolan, Institutionen for Skogszoologi, Rapporter och Uppsatser 10. 28 p.