@misc{indiciae839b1ea97754,
  title = {A new tracer‐density criterion for heterogeneous porous media},
  author = {Gilbert R. Barth and Tissa H. Illangasekare and Mary C. Hill and Harihar Rajaram},
  year = {2001},
  doi = {10.1029/2000wr900287},
  url = {https://pubs.usgs.gov/publication/70023639},
  note = {Source identifier: 70023639}
}