Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Negron, J., W. Schaupp, K. Gibson, J. Anhold, D. Hansen, R. Thier, and P. Mocetiini. 1999. Estimating extent of mortality associated with the Douglas-fir beetle in the central and northern Rockies . Western Journal of Applied Forestry 14:121-127.