- Oregon State University. Extension Service67
- Southwest Oregon Forestry Intensified Research Program. Adaptive Phase45
- Oregon State University. Forest Research Laboratory33
- Forest Products Laboratory (U.S.)31
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)29
- U.S. International Biological Program. Coniferous Forest Biome12
- Oregon State University. College Of Forestry11
- Oregon State University. Coordinated Research On Alternative Forestry Treatments & Systems11
- Leavengood, Scott A.7
- Reeb, J. E. (James Edmund), 1951 7
- Hansen, Eric6
- Hansen, Eric, 1968 6
- United States. Forest Service6
- University Of Washington6
- Pacific Northwest Forest Experiment Station (Portland, Or.)5
- Oregon Forest Products Laboratory4
- Smith, Robert4
- Eastern Oregon Agricultural Research Center3
- Oester, Paul T.3
- Oregon State University. Agricultural Experiment Station3