- Gries, G., D. R. Miller, M. J. Smirle, and J. H. Borden. 1988. New semiochemicals in the pine engraver, Ips pini (Say) (Coleoptera: Scolytidae) . International Congress of Entomology, Proceedings 18:429.
- Hunt, D. W. A., and M. J. Smirle. 1988. Partial inhibition of pheromone production in Dendroctonus ponderosae (Coleoptera: Scolytidae) by polysubstrate monooxygenase inhibitors . Journal of Chemical Ecology 14:529-536.
- Gries, G., M. Smirle, A. Leufven, D. Miller, J. Borden, and H. Whitney. 1990c. Conversion of phenylalanine to toluene and 2-phenylethanol by the pine engraver Ips pini (Say) (Coleoptera, Scolytidae) . Experimentia (Basel) 46:329-331.