- Cole, D. M., and G. E. Jensen. 1980. Estimating phloem thickness in lodgepole pine stands using electrical resistance measurements . Canadian Journal of Forest Research 10:102-106.
- Cole, W. E., G. D. Amman, and C. E. Jensen. 1976. Mathematical models for the mountain pine beetle-lodgepole pine interaction . Environmental Entomology 5:11-19.
- Cole, W. E., E. P. Guymon, and C. E. Jensen. 1981. Monoterpenes of lodgepole pine phloem as related to mountain pine beetles. United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, Research Paper INT-281. 10 p.
- Cole, W. E., and C. E. Jensen. 1985. Mountain pine beetle dynamics in lodgepole pine forests, Part III: sampling and modeling of mountain pine beetle populations. United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, INT-188. 46 p.
- Jensen, A. D. 1967. Parasites and predators of the Engelmann spruce beetle. Unpublished thesis, Colorado State University, Fort Collins. 76 p.
- Klein, W. H., D. L. Parker, and C. E. Jensen. 1978. Attack, emergence, and stand depletion trends of the mountain pipe beetle in a lodgepole pine stand during an outbreak . Environmental Entomology 7:732-737.
- Cole, W. E., G. D. Amman, and C. E. Jensen. 1985. Mountain pine beetle dynamics in lodgepole pine forests. Part III. Sampling and modeling of mountain pine beetle populations. United States Department of Agriculture, Forest Service, Intermountain Research Station, Ogden, Utah, General Technical Report INT-188. 46 p.