1. The historical role of fire on the Bitterroot National Forest;Arno;USDA For. Serv. Res. Pap. INT-187,1976
2. Forest fire history in the Northern Rockies;Arno;J. For.,1980
3. Variation in estimates of fire intervals: a closer look at fire history on the Bitterroot National Forest;Arno;USDA For. Serv. Res. Pap. INT-301,1983
4. A method for determining fire history in coniferous forests of the Mountain West;Arno;USDA For. Serv. Gen. Tech. Rep. INT-42,1977
5. Indexing western spruce budworm activity through radial increment analysis;Carlson;USDA For. Serv. Res. Pap. INT-291,1982