@misc{indiciaec0d595b5f56e,
  title = {Microcomputer codes for simulating transient ground-water flow: in two and three space dimensions},
  author = {J.D. Bredehoeft},
  year = {1991},
  doi = {10.3133/ofr90559},
  url = {https://pubs.usgs.gov/publication/ofr90559},
  note = {Source identifier: ofr90559}
}