- Werner, R. A., R. D. Averill, F. L. Hastings, J. W. Hilgert, and U. E. Brady. 1984. Field evaluation of fenitrothion, permethrin, and chlorpyrifos for protecting white spruce trees from spruce beetle (Coleoptera: Scolytidae) attack in Alaska . Journal of Economic Entomology 77:995-998.
- Werner, R., and J. Hilgert. 1992. Effects of permethrin on aquatic organisms in a freshwater stream in south-central Alaska . Journal of Economic Entomology 85:860-864.