1. Allen CD, Savage M, Falk DA, Suckling KF, Swetnam TW, Schulke T, Stacey PB, Morgan P, Hoffman M, Klingel JT. 2002. Ecological restoration of southwest Ponderosa pine ecosystems: a broad perspective. Ecol Appl 12:1418–33
2. Baker WL, Ehle D. 2001. Uncertainty in surface-fire history: the case of ponderosa pine forest in the western United States. Can J Forest Res 31:1205–26
3. Bolton RB, Vogl RJ. 1969. Ecological requirements of Pseudotsuga macrocarpa (Vasey) Mayr. in the Santa Ana Mountains. J Forestry 69:112–9
4. Borchert M. 1985. Serotiny and cone-habit variation in populations of Pinus coulteri (Pinaceae) in the southern Coast Ranges of California. Madroño 32:29–48
5. Davis FW, Quattrochi DA, Ridd MK, Lam NS-N, Walsh SJ, Michaelson JC, Franklin J, Stow DA, Johannsen CJ, Johnston CA. 1991. Environmental analysis using integrated GIS and remotely sensed data: some research needs and priorities. Photogramm Eng Remote Sens 57:689–97