Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Ozols, G. E., and Y. M. Bicevskis. 1976. Study of attractants of spruce bark beetle Ips typographus in Latvia [In Russian, Latvian, English summaries] . Zashchita khovoinykh v Latviiskoi SSR 1976:19-42.
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