10.13140/RG.2.2.11259.41760Paul Raymond AdamusDana FieldGuidebook for Hydrogeomorphic (HGM)–based Assessment of Oregon Wetland and Riparian Sites. I. Willamette Valley Ecoregion, Riverine Impounding and Slope/Flats Subclasses. Volume IA: Assessment Methods.Unpublished2001Methoden