@misc{indiciae1f62890021ea,
  title = {Factors controlling nitrate fluxes in groundwater in agricultural areas},
  author = {Lixia Liao and Christopher T. Green and Barbara A. Bekins and J.K. Böhlke},
  year = {2012},
  doi = {10.1029/2011wr011008},
  url = {https://pubs.usgs.gov/publication/70003961},
  note = {Source identifier: 70003961}
}