Moser, T., Wigington, P., Schuft, M., Kaufmann, P., Herlihy, A., Van Sickle, J., & McAllister, L. (1997). Effect of riparian areas on the ecological condition of small, perennial streams in agricultural landscapes of the Willamette Valley : research plan, June 1997. : Corvallis, Or. : U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Lab.