Christiansen, E. 1981. Granbarkbillens erobringsevne, sett i forhold til vertstreets viralitet og vekst [Infestation ability of epidemic Ips typographus in relation to vitality and increment of Norway spruce]. Norsk Institutt for Skogforskning, Rapport No. 2/31. 20 p.
Christiansen 1981
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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