Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Rudnev, D. F., and V. T. Kozak. 1974b. Uber die variabilitat der Brutbilder von Kiefernborkenkafer (Coleoptera, Ipidae) . Anzeiger fur Schadlingskunde Pflanzen Umweltschutz 47:155-158.
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