- United States. Forest Service. Northern Region. State & Private Forestry29
- Mcgregor, Mark D.17
- Oregon State University. Agricultural Experiment Station16
- Et Al.12
- Kohler, Steve10
- Oregon State University10
- Oregon State University. Forest Research Laboratory10
- de Szoeke, Simon P.9
- Dewey, Jerald E.9
- Gibson, Kenneth E.9
- Spatafora, Joseph W.9
- Forest Products Laboratory (U.S.)8
- Jaiswal, Pankaj8
- Brook, Edward J.7
- Gilmont, Susan7
- Good, Stephen P.7
- Markland, Mary7
- Noone, David7
- United States. Forest Service7
- Webster, Janet G.7