@misc{indiciae86414385edc2,
  title = {Adjustment of pesticide concentrations for temporal changes in analytical recovery, 1992-2006},
  author = {Jeffrey D. Martin and Wesley W. Stone and Duane S. Wydoski and Mark W. Sandstrom},
  year = {2009},
  doi = {10.3133/sir20095189},
  url = {https://pubs.usgs.gov/publication/sir20095189},
  note = {Source identifier: sir20095189}
}