Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Puls, J. C. 1886. De olmen der openbare plaatsen en hun ergste vijland Scolytus destructor . Tijdschrift over Boomteeltkunde, Bloementeels en Moeshovenierderij 1886:259-262, 302-304, 334-337, 1886:55-58.
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