TY - RPRT TI - Eutrophication of freshwater and marine ecosystems AU - Val H. Smith AU - Samantha B. Joye AU - Robert W. Howarth PY - 2006 DO - 10.4319/lo.2006.51.1_part_2.0351 UR - https://pubs.usgs.gov/publication/70174248 ID - 70174248 ER -