- Oregon State University. College Of Forestry89
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)39
- Oregon State University. Forest Research Laboratory29
- Moravets, F. L.17
- Emmingham, William H.6
- Conard, Susan G.5
- Gedney, Donald R.5
- Johnson, K. Norman3
- Meagher, George S.3
- Beuter, John H.2
- Bones, James T.2
- Cleary, Brian D.2
- Greber, Brian2
- Hermann, R. K.2
- Maclean, Colin D.2
- Morford, Shawn2
- Oregon State University. Extension Service2
- Oregon. Department Of Forestry2
- Scheurman, H. Lynn2
- Stoltenberg, Carl2