Krol, A., and A. Bakke. 1985. Effect of distance between the pheromone traps on the effectiveness of the spruce bark beetle Ips typographus aggregation . Acta Agrar Silvestria Ser Silvestris 24:21-30.
Krol & Bakke 1985
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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