@misc{indiciae0ebbfe29a6d7,
  title = {User's guide to the Variably Saturated Flow (VSF) process to MODFLOW},
  author = {R. Brad Thoms and Richard L. Johnson and Richard W. Healy},
  year = {2006},
  doi = {10.3133/tm6a18},
  url = {https://pubs.usgs.gov/publication/tm6A18},
  note = {Source identifier: tm6A18}
}