Jaaskela, M., M. Peltonen, H. Saarenmaa, and K. Heliövaara. 1997. Comparison of protection methods of pine stacks against Tomicus piniperda . Silva Fennica 31:143-152.
Jaaskela et al. 1997
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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