Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Elfving, B., and B. Langstrom. 1984. Kronskadegorelse och tillvaxtreaktion i ett margborreskadat bestand [Crown damage and growth response in a pine stand attacked by Tomicus piniperda]. Sveriges Skogsvardsforbunds Tidskrift, nr. 1.