TY - RPRT TI - An assessment of optical properties of dissolved organic material as quantitative source indicators in the Santa Ana River basin, Southern California AU - Brian A. Bergamaschi AU - Erica Kalve AU - Larry Guenther AU - Gregory O. Mendez AU - Kenneth Belitz PY - 2005 DO - 10.3133/sir20055152 UR - https://pubs.usgs.gov/publication/sir20055152 ID - sir20055152 ER -