TY - RPRT TI - Limited nitrate retention capacity in the Upper Mississippi River AU - Luke C. Loken AU - John T. Crawford AU - Mark M. Dornblaser AU - Robert G. Striegl AU - Jeffrey N. Houser AU - Peter A Turner AU - Emily H. Stanley PY - 2018 DO - 10.1088/1748-9326/aacd51 UR - https://pubs.usgs.gov/publication/70216332 ID - 70216332 ER -