Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Graf, E., and P. Manser. 1996. Der Schwarze Nutzholzborkenkafer Xylosandrus germanus in der Schweiz [The black timber bark beetle Xylosandrus germanus in Switzerland]. Holz Zentralblatt 12229,454,456.
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