TY - RPRT TI - Mapping of accumulated nitrogen in the sediment pore water of a eutrophic lake in Iowa, USA AU - M.Z. Iqbal AU - C.L. Fields PY - 2008 DO - 10.1007/s00254-008-1317-x UR - https://pubs.usgs.gov/publication/70032530 ID - 70032530 ER -