Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Hodapp, W. 1954. Der Verlauf der Fichtenborkenkaferkalamitat in Baden seit 1942. Pages 11-93 in Wellenstein, Die grosse Borkenkaferkalamitat in Sudwestdeutschland 1944-1951. Ebner, Ulm. 1954.
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