- Oregon State University. Extension Service163
- Oregon State University. Agricultural Experiment Station81
- Oregon State University59
- Peachey, Ronald Edward49
- Oregon State University. College Of Forestry37
- Pscheidt, Jay W.36
- Zaneveld, J. Ronald34
- Pacific Northwest Cooperative Extension32
- Forest Products Laboratory (U.S.)27
- Oregon State University. Forest Research Laboratory25
- Olsen, Jeff L.24
- Zaneveld, J. Ronald V.24
- Luxford, R. F. (Ronald Floyd), 1889 23
- Oregon State University. Water Resources Research Institute22
- U.S. International Biological Program. Coniferous Forest Biome22
- Mahoney, Ronald Lynn18
- Pak, Hasong18
- Bennett, Max, 1963 17
- de Szoeke, Simon P.17
- Fitzgerald, Stephen Arthur17