@misc{indiciaea2d4cfa4828b,
  title = {Modeling groundwater nitrate concentrations in private wells in Iowa},
  author = {David C. Wheeler and Bernard T. Nolan and Abigail R. Flory and Curt T. DellaValle and Mary H. Ward},
  year = {2015},
  doi = {10.1016/j.scitotenv.2015.07.080},
  url = {https://pubs.usgs.gov/publication/70155181},
  note = {Source identifier: 70155181}
}