@misc{indiciaeb40024c62087,
  title = {MODFLOW-2000, the U. S. Geological Survey modular ground-water model; user guide to the Link-AMG (LMG) package for solving matrix equations using an algebraic multigrid solver},
  author = {S.W. Mehl and M. C. Hill},
  year = {2001},
  doi = {10.3133/ofr01177},
  url = {https://pubs.usgs.gov/publication/ofr01177},
  note = {Source identifier: ofr01177}
}