@misc{indiciae671202c8070f,
  title = {Evaluating changes in matrix based, recovery-adjusted concentrations in paired data for pesticides in groundwater},
  author = {Tammy M. Zimmerman and Kevin J. Breen},
  year = {2012},
  doi = {10.2134/jeq2011.0271},
  url = {https://pubs.usgs.gov/publication/70006298},
  note = {Source identifier: 70006298}
}