- Kovacic, D. A., M. I. Dyer, and A. T. Cringan. 1985. Understory biomass in ponderosa pine following mountain pine beetle infestation . Forest Ecology and Management 13:53-67.
- Kovacic, D. A., M. Dyer, and A. T. Cringan. 1985. Understory biomas in ponderosa pine following mountain pine beetle infestation . Forest Ecology and Management 13:53-68.