@misc{indiciaeb3edbae62e55,
  title = {Advective-transport observation (ADV) package, a computer program for adding advective-transport observations of steady-state flow fields to the three-dimensional ground-water-flow parameter-estimation model MODFLOWP},
  author = {Evan R. Anderman and Mary Catherine Hill},
  year = {1997},
  doi = {10.3133/ofr9714},
  url = {https://pubs.usgs.gov/publication/ofr9714},
  note = {Source identifier: ofr9714}
}