Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Spessivtsev, P. (. P. 1928a. Studier over de svenska barkborrarnas biologi sarskilt med hansyn till generationsutvecklingen. Del I. [German summary]. Medd. Skogsforsoksanst., Stockholm 24:221-250, 16 figs.
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