- Stickney, F. S., D. F. Barnes, and P. Simmons. 1950. Date palm insects in the United States [Scolytidae, p. 48]. United States Department of Agriculture, Circular 846. 57 p.
- Moeck, H. A., L. Safranyik, C. S. Simmons, and C. M. Lawko. 1985. Ips tridens (Coleoptera: Scolytidae) attracted by ipsdienol plus cis-verbenol . Canadian Entomologist 117:955-960.
- Moeck, H., and C. Simmons. 1991. Primary attraction of mountain pine beetle, Dendroctonus ponderosae Hopk. (Coleoptera: Scolytidae), to bolts of lodgepole pine. The Canadian Entomologist 123:299-304.
- Safranyik, L., H. Barclay, and C. Simmons. 1990. A conceptual model of spruce beetle population dynamics. Forestry Canada, Canadian Forestry Service, Pacific Forestry Centre (Victoria, B.C.), Information Report BC-X-316.
- Turchin, P., and G. Simmons. 1997. Movements of animals in congregations: An eulerian analysis of bark beetle swarming. Pages 113-125 In Animal groups in three dimensions. Cambridge University Press; Cambridge, England.