Nef, L. 1989. Quantification de l'intensite des attaques d'Ips typographus L. sur Picea abies Karst. [Quantification of the intensity of the attacks of Ips typographus on the Norway spruce]. Journal of Applied Entomology 107: 296-303.
Nef 1989
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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