Dillman, R. D., S. S. Shen, B. B. Eav, and W. B. White. 1981. Operational test of panoramic aerial photography for estimating annual mortality of ponderosa pine caused by mountain pine beetle. United States Department of Agriculture, Lockheed Engineering and Management Company, Inc. LEC-16377.
Dillman et al. 1981
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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