@misc{indiciae0f3ad2ea7746,
  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 = {1993},
  doi = {10.3133/twri06a5},
  url = {https://pubs.usgs.gov/publication/twri06A5},
  note = {Source identifier: twri06A5}
}