@misc{indiciae96b8245db56f,
  title = {A modular finite-element model (MODFE) for areal and axisymmetric ground-water-flow problems; Part 3, Design philosophy and programming details},
  author = {L.J. Torak},
  year = {1992},
  doi = {10.3133/ofr91471},
  url = {https://pubs.usgs.gov/publication/ofr91471},
  note = {Source identifier: ofr91471}
}