@misc{indiciae83f9b6acd8f1,
  title = {Calibration of models using groundwater age},
  author = {Ward E. Sanford},
  year = {2010},
  doi = {10.1007/s10040-010-0637-6},
  url = {https://pubs.usgs.gov/publication/70033884},
  note = {Source identifier: 70033884}
}