@misc{indiciae9b418a536f75,
  title = {Modeled ground water age distributions},
  author = {Linda R. Woolfenden and Timothy R. Ginn},
  year = {2009},
  doi = {10.1111/j.1745-6584.2008.00550.x},
  url = {https://pubs.usgs.gov/publication/70036661},
  note = {Source identifier: 70036661}
}