@misc{indiciaeee5fc0a07bf9,
  title = {Direct solution package based on alternating diagonal ordering for the U.S. Geological Survey modular finite-difference ground-water flow model},
  author = {Arlen W. Harbaugh},
  year = {1995},
  doi = {10.3133/ofr95288},
  url = {https://pubs.usgs.gov/publication/ofr95288},
  note = {Source identifier: ofr95288}
}