TY - RPRT TI - Rating curve estimation of nutrient loads in Iowa rivers AU - G.A. Stenback AU - W.G. Crumpton AU - K. E. Schilling AU - M.J. Helmers PY - 2011 DO - 10.1016/j.jhydrol.2010.11.006 UR - https://pubs.usgs.gov/publication/70036668 ID - 70036668 ER -